iodine and knee joint

I've always had some minor troubles with my right knee. I usually cut back on exercise when it acts up because I don't want to make it worse. Recently I went several days without working out and I hadn't been feeling it at all for a while, then I started taking some Iodine and I feel it throbbing some.

I'm not sure if it was the Iodine or not, but does anyone have experience with detox that deals with joints, or other related information?

Thanks,
Ruth Tweet