Hi,
3 and half months back, I got
vitamin d and
b12 tested. It was low and Doctor prescribed vitamin d every week for 12 weeks. Due to some circumstances, I couldn't take it for 12 weeks. I stopped after 4 weeks. Now, I again want to take it because of my back pain/low energy. Whenever my vitamin D goes low, I will get back pain. Can I take directly without prescription now or can I get blood test done again even though it is less than 4 months from my last blood test. Please help on this.