Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
You are having IBS-D (diarrhea
, rapid heart beat and chest pain
may be due to anxiety
which may happen in IBS also. But I will like to advise you to get Cardiac check up if that turns out to be normal then simply take anti-anxiety agent
I hope I have answered your query and this will help you. Remain in touch and get-well soon.