if you suspect heavy metals... I did some detox in 2005. I used 3lbs. of Epsom Salts in a bathtub and soaked for 30-40 minutes in water up to my chin. I did 2 baths/week, for 4 weeks and supplemented with 4-5,000mg vit C and I forget how much, but I think it was 2-3 times the recommended dose on the bottle, of Chlorella. I was lethargic during all this time. Also, I took some herbs for the kidneys, and as soon as I finished with the many supplements I was taking, I resumed my liver flushes.
Have you done bowel/parasite/dental/kidney/liver cleanses? I think they all helped me tremendously. I am hoping the Iodine piece is the last one in my puzzle.
Hang in there, I hope you feel better soon. Please keep us posted.