I hope you have gotten the information that you need. You posted in December and it's now March. In any event, I also suffered from low Vitamin D. My #'s were around 18. I am now taking 150,000 iud of Vitamin D a week and I have for the past 4 years. After 4 years the pain in my bones has finally subsided. My numbers have also gone back to normal, I believe I am in the 29 range. It took my body 4 years at these super high doses to get the numbers back up so keep at it. Best of luck to you.