Breastfeeding & Mental Health
Reviewed by Dr. Sanam Shamtobi, PhD, PMH-C
Breastfeeding & Postpartum Mental Health
Nobody told you that breastfeeding could make you feel this way.
Maybe it's a wave of sadness that hits every time you sit down to nurse. Maybe it's the anxiety that tightens your chest right as your milk lets down. Maybe it's the rage, the dread, or the hollow feeling you can't explain — and you're wondering if something is seriously wrong with you.
Here's what you need to know: you're not imagining it. The connection between breastfeeding and mental health is real, it's physiological, and it's something more moms experience than you'd ever guess. You're not broken. You're not a bad mom. And there is help.
How Breastfeeding Can Affect Your Mental Health
Breastfeeding is supposed to be "natural." And in many ways, it is — it's a biological process. But "natural" doesn't mean easy, and it certainly doesn't mean it always feels good.
Here are some of the ways breastfeeding can impact how you feel:
Sudden waves of negative emotions during letdown. You're fine — and then the moment your milk lets down, you feel a crash of sadness, anxiety, irritability, or even disgust. It comes out of nowhere, lasts a few minutes, and then lifts. This has a name: Dysphoric Milk Ejection Reflex (D-MER) — and we'll talk about it in detail below.
Anxiety that gets worse around feeding times. Some moms develop anxiety specifically connected to breastfeeding — worrying about supply, about whether the baby is getting enough, about nursing in public, about the next feed. It's not just normal new-mom worry. It's consuming.
Feeling trapped or resentful. When you're the only one who can feed the baby, it can feel like a prison. You can't be away for more than a few hours. Your body isn't yours. Pumping is exhausting. And admitting you hate any part of breastfeeding feels like admitting you're a bad mother.
Depression that seems connected to nursing. For some moms, breastfeeding hormones (prolactin, oxytocin) interact with an already-vulnerable mood in ways that make postpartum depression worse. Others find that the sleep deprivation and physical demands of exclusive breastfeeding push them past their limits.
Mood crashes when weaning. Stopping breastfeeding — whether by choice or necessity — can trigger a hormonal shift that tanks your mood. Some moms describe sudden depression, anxiety, or emotional instability when they start weaning. This is hormonal, and it's not talked about enough.
D-MER: When Breastfeeding Triggers Negative Emotions
If you've ever experienced a sudden wave of sadness, anxiety, dread, or irritability right as your milk lets down — and then it disappears a few minutes later — you may have Dysphoric Milk Ejection Reflex (D-MER).
D-MER is a physiological condition (not a psychological one) caused by a sudden drop in dopamine that happens when milk is released. It's involuntary. It's not caused by your feelings about breastfeeding. And it's not in your head.
What D-MER feels like
D-MER affects moms differently, but common experiences include:
A pit-of-your-stomach dread that appears at letdown and fades within minutes
Sudden sadness or hopelessness — not about anything specific, just a wave that washes over you
Irritability or agitation — feeling suddenly angry or overwhelmed
Anxiety or panic right before or during letdown
A hollow, empty feeling — like homesickness without a reason
Nausea or a "crawling skin" sensation
The key feature of D-MER is the timing: it hits at letdown (when your milk releases) and lifts within 1-10 minutes. If your negative feelings last throughout the entire feed or persist between feeds, that might be postpartum depression or postpartum anxiety — which are also treatable.
D-MER is NOT:
A dislike of breastfeeding (though it can make you dread it)
Postpartum depression (though they can coexist)
Caused by stress or negative thoughts
Your fault in any way
How common is D-MER?
Research is still catching up, but early studies suggest D-MER affects approximately 9-15% of breastfeeding mothers. Many more may experience it without ever knowing it has a name.
Can Breastfeeding Cause Anxiety and Depression?
The short answer: yes, breastfeeding can affect your mental health — and the relationship goes both ways.
Breastfeeding can worsen existing mood issues. If you're already experiencing postpartum anxiety or depression, the physical demands, sleep disruption, and hormonal effects of breastfeeding can intensify those feelings.
Breastfeeding struggles create their own mental health impact. Latch issues, low supply, mastitis, tongue ties, pumping schedules — when breastfeeding isn't going smoothly, the stress and perceived "failure" can trigger or worsen anxiety and depression.
The pressure to breastfeed is its own problem. "Breast is best" messaging, well-meaning relatives, social media comparison — the pressure to breastfeed exclusively (and to love it) can create enormous guilt and shame when reality doesn't match expectations.
Stopping breastfeeding can cause anxiety too. Whether you wean by choice, because of medication, or because of supply issues — the hormonal shift from stopping breastfeeding can trigger mood changes. Many moms feel sudden anxiety or sadness during weaning and don't connect it to the hormonal drop.
You're Not Alone — And This Isn't Your Fault
If you're struggling with your mental health around breastfeeding, you're in the company of millions of moms who've felt the same way and didn't talk about it.
The silence around this topic is part of the problem. When every breastfeeding ad shows a glowing mother gazing peacefully at her baby, it's easy to think something is wrong with you when your experience looks nothing like that.
Struggling with breastfeeding doesn't mean you're failing. Fed is best. However your baby eats — breast, bottle, formula, combo — you are doing a good job.
Having negative feelings while nursing doesn't mean you don't love your baby. D-MER, breastfeeding anxiety, and nursing aversion are physiological responses. They say nothing about your love for your child.
Choosing to stop breastfeeding for your mental health is a valid medical decision. If breastfeeding is harming your wellbeing, stopping or modifying your approach isn't selfish. It's health care.
How Therapy Helps
You might be thinking: "If D-MER is physiological, how can therapy help?" Good question. Here's how:
For D-MER specifically:
Understanding what's happening in your body reduces the fear and confusion
Coping strategies for the moments of dysphoria (grounding techniques, environmental changes, mindfulness)
Processing the grief if D-MER leads you to stop breastfeeding
Support in making informed decisions about your feeding journey
For breastfeeding-related anxiety and depression:
Your therapist at The Mother Hood helps you separate "normal hard" from "something more" — because both deserve attention, but they might need different approaches
Cognitive strategies for managing the guilt, the comparison, and the "should" voice in your head
Practical problem-solving for the logistics that feel overwhelming (pumping at work, sleep schedules, weaning plans)
Processing complicated feelings about breastfeeding without judgment
For the bigger picture:
Breastfeeding challenges often intersect with postpartum depression, anxiety, relationship changes, and identity shifts. Your therapist can help you address the whole picture — not just one piece.
Medication, if needed:
If anxiety or depression is significant, medication may help. Many moms worry about anxiety medications while breastfeeding. Your therapist can help you navigate this conversation with your prescribing doctor, and there are options that are considered compatible with breastfeeding.
What Treatment Looks Like at The Mother Hood
The Mother Hood is a maternal mental health practice — this is literally what we do. We see moms struggling with breastfeeding and mental health every single day.
What to expect:
A therapist who understands lactation and mental health. Our clinicians are trained in perinatal mental health (PMH-C certified) and understand the hormonal, emotional, and physical complexities of breastfeeding. You won't have to explain why letdown makes you cry.
Zero judgment about your feeding choices. Whether you're exclusively breastfeeding, combo feeding, pumping, using formula, or trying to figure out what's right for you — we support your decision. Always.
A non-clinical, baby-friendly space. Our Brentwood office is warm and welcoming. Need to nurse during your session? Need to bring your baby? That's perfectly fine.
Telehealth that fits your life. Many breastfeeding moms prefer virtual sessions — you can attend from your couch while pumping, or during nap time. We see clients throughout California.
Coordination with your OB, midwife, or lactation consultant. Mental health doesn't exist in a vacuum. With your permission, we can coordinate with your other providers to make sure you're getting comprehensive care.
When to Reach Out
You don't need a diagnosis to deserve support. If breastfeeding is affecting your mood, your wellbeing, or your experience of motherhood, that's enough.
Consider reaching out if:
You experience sudden negative emotions during letdown (possible D-MER)
Breastfeeding fills you with dread, anxiety, or resentment
You're feeling depressed and suspect it's connected to nursing
You're weaning and your mood has dropped significantly
You're struggling with the decision to continue or stop breastfeeding
The pressure to breastfeed is affecting your mental health
You want to talk to someone who understands this specific experience
Contact The Mother Hood today — because your mental health matters as much as how you feed your baby.
Frequently Asked Questions
What is D-MER (Dysphoric Milk Ejection Reflex)?
D-MER is a physiological condition where a sudden drop in dopamine at milk letdown causes brief negative emotions — sadness, anxiety, dread, or irritability. It typically lasts 30 seconds to a few minutes and resolves once letdown is complete. It's not caused by your thoughts or feelings about breastfeeding. It's a chemical response in your brain, and it's not your fault.
Can breastfeeding cause anxiety and depression?
Yes. Breastfeeding involves significant hormonal changes that can affect mood. The physical demands, sleep disruption, and pressure around breastfeeding can also trigger or worsen postpartum anxiety and depression. If you're noticing a connection between nursing and your mood, trust that observation — it's real.
Can stopping breastfeeding cause anxiety?
It can. Weaning causes a drop in prolactin and oxytocin — hormones that affect mood regulation. Some moms experience sudden anxiety, sadness, or emotional instability during weaning. This is hormonal and usually temporary, but it can be intense. If it's affecting your daily life, therapy can help.
Is it safe to take anxiety medication while breastfeeding?
This is a question for your prescribing doctor, but many SSRIs and other medications are considered compatible with breastfeeding. Your therapist at The Mother Hood can help you think through this decision and support you in conversations with your medical provider.
Will my D-MER go away on its own?
Some moms find that D-MER improves over time — often around 3-4 months postpartum, sometimes later. For others, it persists throughout breastfeeding. Understanding what it is and having coping strategies makes it more manageable, even if it doesn't fully resolve.
Should I stop breastfeeding if it's affecting my mental health?
That's a deeply personal decision, and there's no wrong answer. What we can tell you is this: your mental health matters. A mother who is well and formula-feeding is better for your baby than a mother who is suffering and breastfeeding. We'll help you explore your options without pressure either way.
Can I bring my baby to therapy sessions?
Absolutely. Our Brentwood office is baby-friendly. You're welcome to nurse, bottle-feed, or let your baby nap during your session. We also offer telehealth sessions if that's easier.
Your Mental Health Matters — However You Feed Your Baby
Breastfeeding is complicated. The emotions around it are complicated. And you deserve support that honors that complexity instead of simplifying it into a bumper sticker.
Whether you're dealing with D-MER, breastfeeding anxiety, weaning depression, or the overwhelming guilt of "choosing wrong" — you're not alone, and you don't have to push through it by yourself.
Reach out to The Mother Hood — we'll meet you wherever you are in your feeding journey, without judgment.
*Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call 911. If you are in crisis, call 988 (Suicide & Crisis Lifeline) or text HOME to 741741 (Crisis Text Line).*