This has been a tough time for me. I've had at least 2 panic attacks a day since the 27th. Wish I knew the reason. Nothing will be going on , I will be watching television 1 minute and the next.... feel like i'm about to die. I get up and walk it off.( My nervous energy that is) and it usually disappears within an hour if two. I called my therapist to ask why, she said that she thinks I have" anticipatory anxiety " meaning i'm expecting it to happen and that's why it does . Does that make any since.? Why are the medications not working? Is it the medications fault? Maybe it's the new anti depressant medication they have me on. They took me off zoloft slowly and then they started giving me effexor. It's gotta be the effexor. They took me off zoloft for the negative side effects. Zoloft actually increased my anxiety levels.