I have been a Diet Coke addict since 1980, well I started with Tab and then moved to DC when I couldn't find it. I usually drink a 6 pack a day. Switched to caffene free last winter due to high blood pressure. Well I used to, as of yesterday I have quit it. Wow is this hard-now I know how smokers feel when they quit smoking. My question is does soda consumption seem to effect your fibomyalgia?