Are you taking any drugs for it? That's what I do. I hate how helpless panic attacks make me feel--especially when they come for no apparent reason (but I do think there is usually a cause--we may not be sure because the origins are from long ago or a while ago). Sorry you are experiencing this. Now I am going to take one of the drugs I lightened up on because I can't stop posting at PC and should do some other work. (But I can relate to having waves of panic on many occassions.)