In November 2009, my doctor told me I had Vitamin D Defiency. My level was a 6 out of 32. A few months ago, I was tested again and I'm still waiting for the results. Since I was tested the second time I quit taking my medicine (1000 units 3 times a week). I have really bad headaches, and extremely painful pre-menstrual, menstrual, and post-menstrual cramps. Also, I have mood swings when least expected. I'm wondering if these symptoms could have anything to do with vitamin d defiency, and what the symptoms of vitamin d defiency are? Thank you!