I get this and it's awful. I can. Be ok and then I feel terrible all of a sudden and it all starts to go downhill. What's annoying is I also start to think things like. What if Icant read the words on my phone or what if I forget how to use remote control for example and then that sets off another tailspin. My main issue is that I still believe I have a brain tumor, I had scans etc 3 years ago and they didn't find anything. But now I keep thinking they need to do them again. I have just been given medication to take again and even though Ihave been on a different one before I am still petrified of taking it as im afraid of how it will make me feel