i would def. get a second opinion. I went through the racing heart and the shakes and went to a doctor and was told that i needed to stop smoking. She put me through a bunch of lung tests and everything, only to be told "everything seems to be fine" then prescribed me chantix. to stop smoking! well i didn't take the chantix because i new something wasn't right! within a month i was so bad with the lose of hair and tired, the shakes,no energy and my heart felt like it was coming out of my chest everytime i walked a few distants or went up stairs that i went to another doctor and he imm. did blood work and asked me about family history. i'm adopted so i don't know anything. My labs came back and he said i was extremely HYPER...i didn't even know what a thyroid was.....so he sent me to a specialist.....which was comfirmed..i had hyperthyrioism.....so you know your body.....get a second opinion..just a suggestion. good luck!
sorry to keep posting my doctor also put me on a couple of different anti depressants didnt work to well for me so he ended up giving me xanx do you think that could cover up any my problems always been healthy person weights eat well have taken lots of creatines like no explode stuff like that.
also felling unwell sometimes and tired