Well, first of all it is early march and the sun is at an too low angle. Secondly I working from home for over 2 years now, and during most months of the year

Well, first of all it is early march and the sun is at an too low angle. Secondly I working from home for over 2 years now, and during most months of the year it is already dark outside when I am done with work. Thirdly, I already have symptoms which correlate to a deficit, so the doctor not even wanting to look into it baffled me. And well, I never managed to talk to a doctor with my actual test results, but from looking at papers/official resources, 4ng/ml seems to be extremely low as a vitamin d level. Well in the end I obviously don't know if those symptoms are the result of my vitamin d deficit, but time will tell.