Hi. Well, it is nice to know you are here, it is very helpfull to talk to other people who have it and what they go through too.
Can I ask how old you are?
I am 19, I get all the feelings you get, as well as more (getting hot & sweaty, feelings of unreality, fear etc). I take 3 beta blockers every day, which helps with the fast, hard heart beat, but that is all. They don't help with the mental symptoms (feelings of unreality etc).
I think my advice to you would be to see your doctor. Because it may just get worse and then it will be harder to get back to normal. As, I have been like this for 3 years and everyday I just feel worse. I dont really have a helpful doctor, I have been to pyschologists/councilors, but have not made a difference to me.
Take care, read some of the other posts. The Anxiety board is good too.