Your level is fairly low. I would take 8000-10,000iu of D3 a day for 8 weeks and retest. Retesting is very important. At that point if your level is not well above 50ng/ml(125nmol/l), then come back and tell me. If it is well above then you can go to a maintenance dosage of 5000iu a day. If you weigh more than 150lbs let me know. The more you weigh, the more you have to take. If you have health issue’s, you should let me know.
I encourage everyone to read http://www.vitamindcouncil.org/about-vitamin-d/vitamin-d-and-other-vitamins-and-minerals/. It is very important.
If you start to have any symptoms or any symptoms you already have are getting worse, then come back and tell me. It is usually a mineral deficiency.