Hi
I understand your concern.
Feeling of
heart attack is features of anxiety and stress.
Due to
depression and anxiety will affect daily routines and work.
This kind of condition require psychological and social support.
It can be treated with antidepressant like SSRI or SNRI.
Benzodiazapin like clonazapm or
etizolam can be given for panic or anxiety.
But choice of drug is depend upon symptoms and clinical symptomatically.
So
consult psychiatrist and get help.
Do exercise , meditations, relaxation, deep
breathing exercise etc.
Take proper sleep.
Try to do work stress free.
Enjoy hobbies, music, discussed with friends and family.
I hope i have answered your query.
Feel free to ask.
Happy to help you.
Get well soon.
Thank you.