Dear Havetremor,
This must be awful. I really feel with you. I wanted to ask you, are you really certain in your own mind that there is nothing physically wrong with you? I had a similar experience, not with tremors but with chest pains, and although everybody kept telling me everything was ok I just didn't believe them. I kept thinking they just didn't look properly, and I was really very very sick. I think it is important to get it absolutely straight in your mind that you are safe, you are not physically ill, and you are not going to die. Well, you are at some stage, but not right now - you know what I mean.
All the best,
Marianne