To answer your questions, the only medicine I took was Naproxen for the muscle ache after my visit to the ER but I stopped taking it. The other medicine I take is Zantac for the GERD but also stopped talong ot after my symptoms got better.
Oh a detail I didnt mention is that one time my pulse monitor registered a irregular heartbeat, and whenever I take a deep breath my heart beat kinda speeds up and then slows again which I think is normal. Also, when sleeping and I turn around my heart pumps quite hard for a brief moment then calm down. Only thing I can think of that's causing my symptoms is anxiety but I'm not too sure.