Thanks everyone! Dr called me yesterday saying I have a vitamin d deficiency and put me on 50k mg a week for 8 weeks. I felt great yesterday and took the pill last night. I started feeling terrible once I went to bed..numbness all up and down my left side..itching..pins and needles. I had terrible insomnia. I don't understand. I am so much worse now than I was before. Can anyone make sense of this?