I mostly have obsessive thoughts that make me anxious...but at once i had a fear of getting poisened...and it does suck...the only choices you have right now are try and over come it, which i know isn't very easy; or do what I do and go to a psychiatrist to get some anti-anxiety meds, imipramine did wonders for my anxiety. Getting a councelor to talk to is a good thing for me as well...ask a doctor about Imipramine, read up on it on wikipedia...