It's about 5 am. I had trouble falling asleep last night as for some reason i couldn't really feel my heart beat in my chest when i laid down to sleep. It's such a wierd feeling, and not really common to my attacks. I finally slept, from about 230 - 430, but awoke with basically the same feeling and have been freakkng out since...with the classic "i can't get a relieving deep breath" feeling. It's so hard to describe. I have high blood pressure and my family has a history of heart disease so that tends to be a factor when i panic...this is just new though. I'm on 5mg of lexapro day 8. I know that 5mg is not a big dose at all but my attacks or anxiety just feels different since i started it. I'm scheduled to up it to 10 tomorrow. I've tried breathing slowly and deep but that kinda makes me freak out even worse. Pulse rate doesnt seem high at all. Anyone have anything similiar happen to them?