Annie,
I understand the doctor fatigue. And I am completely frustrated by the lack of nutritional knowledge of most doctors, especially my neuro.

I have always been helped by sunlight. When I was a kid I would get sick if I didn't get at least a few days of sunshine every week. I lived for a while in a place that often had cloudy winters and that is when I developed allergies and the only thing that helped was to go for a long drive every weekend to a sunny place. I did try tanning beds and a sun lamp, both of which helped me (I never used these long enough to get tan, only to help my allergy symptoms).

After I realized that sun helped to minimize my MG symptoms, I have been trying to get 15 minutes of sunshine on most days. The good news is that my allergies seem to have disappeared since I started this routine.

I have never taken vitamin D supplements but now I am curious about getting my vitamin D level tested...oh, but I am not ready to go back to see any doctor.

I have read studies that show how sunlight is good for us, but I didn't save the links. I also read that eating good food, fruits and vegetables mostly, may protect your skin from sun damage. I decided that I'd take that risk of skin cancer, because the benefits of sun for me are so noticable. I do try to stay out of the sun in the middle of the day.

This is a good subject to learn more about.

What breaks down vitamin D in the body? Maybe there is something in your diet, vitamins, medicines that encourange the vitamin D to break down and therefore your body is not able to use it.

Here are some interesting articles:

-http://www.vitamindcouncil.org/treatment.shtml

-This site suggest that soy and omega-3 fatty acids are helpful for keeping vitamin D available for use in our body.
http://www.vitamindcouncil.org/cancerProstate.shtml

-I do read in many places that the D3 form is much better than D2 (as mrs D said), here is one site http://www.ncbi.nlm.nih.gov/pubmed/17023693

I think I'll go look at mrs D's thread.

Annie, I hope you find something to help you. Thanks for bringing up this topic.