I know this reply is way, way too late to have been of any help, but glad you're feeling better now. Panic attacks are just horrendous. I'm glad ABers were around to offer words of comfort at the time.
Thank you Cloverjo. Nothing is ever too late. But you are right they are horrendous and horrible things, I am glad that those that were about last night were able to keep me calm, I just hope that that was the last one for a while, totally out the blue.