What you might be experiencing
Grief is one of the most physically demanding emotional experiences a person can go through. When you lose someone or something significant, your body responds as if under threat — flooding your system with stress hormones like cortisol and adrenaline. That response is what makes your chest feel heavy, your limbs feel leaden, and your sleep feel unreachable. The phrase "broken heart" exists for a reason: researchers have identified a condition called Takotsubo cardiomyopathy, sometimes called stress-induced cardiomyopathy, in which acute emotional distress temporarily weakens the heart muscle in ways that mimic a heart attack.
Beyond that, grief disrupts the systems that regulate your baseline. You may not feel hungry, but your body still needs fuel. You may feel bone-tired but find sleep won't come, or you sleep far more than usual and wake up feeling no better. Your immune system can take a hit, making you more vulnerable to illness in the weeks after a significant loss. None of this is weakness. Your nervous system is doing exactly what it was built to do — it registered something catastrophic, and it is responding accordingly.
What can help
Caring for your body during grief is not separate from grieving — it is part of it. Eating regularly, even small amounts, and drinking enough water helps stabilize the stress hormones that make physical symptoms worse. Gentle movement, like a short walk, can provide some relief without demanding energy you do not have. Sleep, even imperfect sleep, matters more than it might seem.
Beyond basics, being honest with yourself about what is happening is important. Physical symptoms that persist for more than a few weeks, or that are intensifying rather than gradually easing, are worth discussing with a healthcare provider — not because something is wrong with how you are grieving, but because your body may need support alongside your mind. Grief counseling, which a therapist or counselor trained in bereavement can provide, addresses both the emotional and physical dimensions of loss. What helps varies by person depending on the nature of the loss, existing health conditions, and available support — but no one benefits from trying to move through significant grief entirely alone.
When to reach out
Reaching out for support after a loss is not a sign that you are struggling more than you should be. It is a sign that you are taking what happened seriously. A grief counselor, therapist, or your primary care provider can help you understand what your body and mind are going through and offer real support — not just reassurance.
Seek professional attention if physical symptoms are persisting or worsening after several weeks, if you are unable to eat or sleep in ways that are affecting your ability to function, or if grief is affecting your relationships or your sense of safety. Severe chest pain, shortness of breath, fainting, or any symptoms that suggest a cardiac event require immediate medical care, separate from grief support — do not wait on those.
If you are having thoughts of self-harm or feel unable to stay safe, please do not manage that alone. If you're in the US and need immediate support, you can call or text 988 (Suicide & Crisis Lifeline) at any time.