to lexd, sounds like hypochondria, learning how to relax would help, also books on how to stop worrying would have useful advice
celexa is 1 of many prozac type meds and these can help, early side effects can be a nusiance and can be reduced by halving the dose for the first 2 weeks and taking some valium as well
a doc who can calm you and reassure you would be a big help but sadly these docs are rare, many refuse to take your problems seriously