My vitamin D level was 22, then my doctor wanted me to take 5,000 IU's and get retested in 3 months. I did. My leel is now 28. She contacted me again and told me to increase to 10,000 of D3 per day as my level was still too low. I have been taking the higher level now for 10 days, and am feeling more depression, extreme fatigue, getting more headaches. I am not a fan of Vitamin D (overrated, fat soluable, could be toxic in my opinion). What I am confused about is that if my level is low, then taking the 10,000 per day, I suppose, shouldn't be causing any problems, but I'm not sure. I am one of those FM'ers who has to be careful with ANYTHING I take, and that includes supplements, food, alcohol, sodas, expecialy meds, etc. I feel totally abnormal with this, but that is the way my body reacts. I honestly don't know what to do, stay with this doseage, or contact my doctor and let her know (which I am afraid to do). Has anyone else ever noticed that with a condition like FM, you are just so scared or afraid to let your doctor know if you think something doesn't agree with you? They are still so clueless with the "sensitivity" aspect of FM. When will they ever believe us? With the research out there that says Vitamin D helps with everything, including obesity problems ( I just don't believe that one) I feel as if I might be doing wrong by stopping the vitamin all together, according to the research. Any suggestions? Hugs Chelz.