One moment you are laughing at something small your baby did. The next, without any obvious trigger, your chest is tight, your thoughts are racing, and you feel close to tears or close to shouting, sometimes both. If this whiplash has scared you, or made you wonder what is wrong with you, I want to tell you plainly: nothing is wrong with you. Something is happening in your body that has a name, a mechanism, and a way through.
This is not moodiness. It is a nervous system running on empty
Three physical forces are colliding in your body right now, often all at once. The steepest hormonal drop of your life, estrogen and progesterone falling further and faster in the days after birth than at almost any other point in human physiology. Sleep deprivation, which degrades your capacity for emotional regulation faster than almost anything else known to affect the brain. And a nervous system that is, for the first time, running a second, constant background process: reading and responding to another person’s cues, every waking hour and most of the sleeping ones too.
Put those three things together and what you get is not a character flaw or a mood disorder in most cases, it is a nervous system operating without the reserves it needs to stay in a regulated middle zone. It swings, because it has nothing left to hold the middle with.
Your body is built to sync with your baby’s
There is a beautiful piece of research that reframes this whole experience. When mothers’ and babies’ heart rates fall into sync during ordinary play and contact, those babies show measurably better emotional regulation and cognitive scores by age two. Your body is not separate from your baby’s right now, it is deeply, physiologically entangled with it, in a way that is designed to help your baby’s brain develop. That entanglement is a feature, not a flaw. It is also, frankly, exhausting to run, especially on four hours of broken sleep.
Why touch is the fastest way back to the middle
When everything feels like it’s swinging too fast, touch is one of the most reliable ways back to steady ground, because it works on brain chemistry directly rather than asking you to think your way out of a feeling. A short, unhurried moment of touch, a hand on your own chest, skin-to-skin with your baby, even a long hug from a partner or friend, measurably raises oxytocin in both people involved. Oxytocin doesn’t just feel nice. It is one of the body’s primary anti-anxiety chemicals, and it is available to you for free, in your own arms, right now.
This is also part of why baby massage works on two people at once. In research where mothers practiced regular massage with their babies over several weeks, both the mother’s mood scores and the baby’s growth measures improved significantly. It is not a coincidence that the thing that soothes your baby also soothes you, the mechanism is shared.
The reset practice for the moment it hits
When you feel the swing happening, the tightness, the sudden tears, the flash of rage at something small, try this before you try to think your way out of it.
Put one hand flat on your own chest. Feel it rise and fall for three breaths, exhaling slightly longer than you inhale. Then, if your baby is near, rest your other hand on them too, their back, their tummy, their hand. You are not fixing the moment. You are giving your body the two inputs, touch and breath, that measurably shift you both back toward calm, faster than thinking, talking, or willpower ever will.
What this is not
This reset is not a substitute for support if the swings are severe, frightening, or don’t ease. If you are having thoughts that scare you, or feel rage that worries you, or the highs and lows are steep enough to affect your relationships or your safety, that is a sign to bring in a perinatal mental health professional, not a sign that you have failed at the practices above.
Here Mama can hold the everyday swings. It is not built to hold a crisis, and it will always tell you honestly when it’s time to reach for more.
The swing is the symptom. The fuel, rest, touch, breath, and a village, is the actual medicine.
You are not unstable. You are unrested, unsupported by the biology of a nuclear-family world, and running two nervous systems at once on very little fuel. Love creates love, and some days, the most loving thing you can do is simply put a hand on your own chest and wait for the wave to pass.
With care, Gayle.
