Thanks for your help and advice. I don't have enough money to get IV Vit. C at the moment but it sounds as if it would be helpful. I'll wait until I get the Cutler book to do anything. I do have a problem with alternating constipation and diarrhea and I've heard that magnesium can help with constipation. I'm a little worried about minerals as I've read that DMSA takes needed minerals out of your body. I'll try to get a test done to see what minerals I need but I'm not sure I can afford that either. I'm not working right now because of my chemical hypersensitivies so I'm dependent on my parents for money.