panic attacks

I now can add panic attacks to my list of ailments. I was rushed to Accident and emergency department Tuesday with palpitations I thought I was going to die. After ECG tests and blood tests and a good 5hours panic was sort of over. What is so strange that at the time my heart was pounding through my chest I wasn't particulary doing anything but sitting infront o my pc. It may well have been the accumilation of events over the past few weeks that I attempted to be free of this blasted agrophobia...! Never thought I was the type to get panic attacks,as Ive had worse events in my life and I was sort of copying better. Anyway,I will try not to let this set back stop me getting out,but I will have to find ways to relax more,and tackle what ever sparked this episode off. Ive been doing alot of crying and I suppose thats just a reaction,but I feel such a fool for giving my nearest and dearest the fright of their lives and I really did think my number was up. Theres no fool like an old fool I guess...