Vitamin D Deficiency
"Was prescribed 50000 iu of Drisdol once a week for 12 weeks. I was reluctant to take it since OTC Vitamin D3 triggers migraines. My doctor  assured me that, since Drisdol was Vitamin D2 NOT D3  it wouldn&#039;t cause headaches. Boy was he WRONG. With 24 hours after taking the first capsule I had a severe migraine that none of my usual meds even made a dent it.  I ended suffering up in bed for three days. Oh, did I mention the horrible knee pain that came along with the migraine?? I guess I was lucky that I had to stay in bed since my legs hurt too bad to walk. Needless to say,I  stopped the Drisdol. I&#039;m sure my doctor won&#039;t be happy with my decision but if he had the reaction to Drisdol that I had I&#039;m sure he would stop taking it too."