use to have bad panic attacks was on 3 medications for them.

several years ago i had bad panic attacks, was on 3 medications for them, they finally stopped and i waned myself off the meds, here lately i have been having symptoms again, but not sure if i should go to dr as i'm questioning if its just panic or if i am having heart attack symptoms, it's probly just panic, i have been stressed on many levels, but my symptoms are a lil diff then when i use to get them ,i am still getting dizzy, have some tingling in my fingers, heart races , get sweats, get cold get hot, when at work when it happens i just want to go home but know that will not help, and tonight my head feels full if that makes sense, along with heartburn i'm guessing, my shoulders are super tense, and i am freaking out, i have been trying to breathe how i use to when i would get them, but still wondering if maybe something else may be wrong, i had blood tests last month and all came back fine, but have gained weight since and am teffified of heart attack due to famil history....i am just scared and freaking at moment..any advice??