Hi everyone: Haven’t been to these boards in a year or so as I am doing WAY better from my ME/CFS. But my doctor and I are still working on getting me back to where I want to be, and we found my vitamin d levels were low. The problem I am having is tolerating any of the supplements (and prescription) we’ve tried. Has anyone else had this experience? If so, did you eventually find a particular brand that worked for you? Or how did you deal with it? I do OK with the first dose usually, but then start to feel progressively worse, the longer I keep taking it. All my symptoms get worse, low-grade fever starts up again, and the worst thing is my sleep gets all messed up again—it is like I am too wired. Somehow it just seems like my body does NOT agree with taking vitamin d supplements! I am keeping at it, trying to take it only every few days and see if I can tolerate it in lesser amounts. My dr. and naturopath both say they have never heard of anyone not tolerating vitamin d and strongly encourage me to continue. Anyway, curious if anyone else has had problems and how they dealt with them. I am so tired of things that are supposed to make me feel better winding up making me feel much worse! But super-glad to be way better overall Thank you!