There is nothing wrong with the injection “per se” but we recommend taking vitamin D “daily” rather than monthly or weekly. It is better for you on a daily dosing. With that being said many doctors do treat with “once a week” dosages. We try and discourage monthly dosing.
So if you did not already get the injection, than you could instead take 20,000iu “a day” for a month, then take the 60,000iu “once a week” or 8000-9000iu “a day” for three months.
We recommend maintaining a “healthy” level of 50ng/ml. At levels below 40ng/ml and your chances for cancer and autoimmune disease rises “dramatically”. So once you are done treatment you really need to take 5000iu a day or else your levels will plummet again.
To make Vitamin D you need to be out during the hours of 10-2pm. So “sunrise” time will not produce Vitamin D. Wearing clothes blocks vitamin D production. With your skin type and with a “quarter” of your body exposed, you would need about 2 hours a day. Expose more skin and the time would be less. It would still be great to go out after sunrise because we also know that other “wavelengths” besides UVB do great things for the human body.
If you have not already, please read https://www.vitamindcouncil.org/about-vitamin-d/vitamin-d-and-other-vitamins-and-minerals/. It is important.
If you take the Vitamin D and symptoms increase or you get new symptoms, come back and tell me. It usually means a mineral deficiency.
If you have more questions, just ask!