hi hi all, I'm really struggling today. I have been having on and off chest pain for a couple of days now along with dizziness palpitations, heart Quivers and also right calf pain that is tender to touch. I have had all of these pains in the past and have always freaked out and gone to the ER just to get all these tests done to find out that I'm fine. so I'm trying to not freak out reminding myself these things but I always play the what-if card in my head.my health anxiety has gotten so bad that I'm now not just focused on one possible thing that could be killing made me right now now I have two things severely worried about a heart attack or a blood clot in my leg. I called my doctor and he said don't worry about the test pain because I did have an EKG done just a week ago so that is a little reassuring. the human body is crazy and I will never understand.
i understand what you going throught i been recovered from ocd health anxiety hypochondriac and depression for 1 year and 10 months but the last 2 weeks been terrible for me i relapse because i have a sore throat this trigger no inly my ocd but my hypochondriac really bad 
my mind keep telling me i will die soon from the sore throat i have sinus and other health problem make everything worse but i m no trying to let anxiety win i won for a year and 10 months this 2 weeks of relapse i m trying to get back on my routine of focus just on the now no past or future also letting the anxiety pass while doing some other activities like tv paint color a book music this really help with ocd anxiety also depression you should try if i can help with anything any question let me know 
its likley to be coming from acid reflux
try changing your diet and take some antiacids such as alovera juice
see if it then subsides