Mike,
I have similar symptoms and lifestyle too you which made me respond to this. I am 24 years old live a pretty good life, always out with friends, usually living my life to the fullest while taking on work and college courses. In december I was getting ready for work and out of no where my heart just started racing which scared me so i went to the ER just to make sure i was okay, they did a EKG and everything was normal. I followed up with my doctor and she put me on Bystolic to help slow down my heart rate. After that in march i went to work, somewhat hungover nothing worse then other days ive gottan through and i just felt very dizzy and my heart rate was really high again, so i went home and rested for a few days and went back to the doctor. I told her about a tragic event that occurred in early december where a young girl had pretty much died in front of me and she thought that may have caused some anxiety, but I think that something like that could not control weird feelings, she proscribed Fluxoetine which i did not take because i dont believe in medicine being able to control my feelings. Over the past months its just gottan worse, Im the same guy as you i like to go out and party with my friends, and this whole summer i havent been able to bc of the awful/weird feelings i have, and in fear that while im out im just gonna get this feelings and bug out. Over the past months ive experienced weird feelings,twitching, numbness, dizziness, hot flashes, nausea, cold/sweating hands and feet, chest pains, bad ingestion.. all things i have never experienced before so when it happens its quite frightening. My blood test came back normal but in the back of my head i keep thinking theres a underlying problem with me. I take classes at kean which im not this semester bc i dont think i can handle a being in class for a few hours, i usually work full time in the summers and i have just worked 3 days a week which alot of days i come home early bc i feel so crappy and not my self, one day i vommitted which i havent from food in from 15 years. All my friends ask why i never come out anymore and they cant seem to understand the feelings i have. I finally gave in to medication too, my doctor put me on buspirone 10mg which ive been on for 3 weeks and hasnt really worked, said it may take a month to actually start working. I tried a psychartist but i sat in his office for 30 mins having my panic attacks and he just beat around the bush so i didnt follow up. Ive pretty much have done the opposite of what my normal daily routines were, most of the comfort i find is at my house and thats it but i dont know how much longer im going to take this without losing my mind i just want to live my normal life again.
Hope this makes you feel a little better, reading yours helped my day a little
"Boomer"