Anonymous #7678 - you are describing the exact symptoms of OCD. If you are not aware that you have OCD I HIGHLY suggest going to the forum above and doing a LOT of reading:
http://www.stuckinadoorway.co.uk/
There are other treatments that can help you with this. As for the chelating, I've read that if you get the source out (remove amalgam fillings) no more mercury will be put into your system daily and your body will slowly get rid of all the mercury in your body now. Chelating just speeds up the process. So if you still have fillings I'd get them out and also start immediatly on treatments (either natural or medication) for Obsessive Compulsive Disorder!!!