Thanks for the response...My mercury dr. wasn't concerned with the 1 amalgam I have(under my crown)...but I am going to see a biological dentist about it...she will do some testing on my tooth...i guess...My problems really started after having my hep B booster shot(w/mercury) and I was out east that week...and ate a lot of seafood...I think maybe this put me over the edge....just a guess though....But I'll let you know what she says about that tooth...Thanks so much..Sandra <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />