Hi Mrs. D., I know you are well read on the subject of Vitamin D3. So, I have a couple of questions. But first some background. I was found to be deficient in Vitamin D about two months ago. My number was 17. My blood platelets were slightly elevated and my c reactive protein was also elevated. Well, I already know that I am constantly inflamed. And a Rheumatology appointment is next. So, my doctor put me on 5000 units of Vitamin D3 a day. It was way too much I think. The next day I was experiencing dizziness until over a period of time I ended up in the ER with severe vertigo. Also, my chest was pounding constantly. They ran a CT scan of my brain and an EKG...everything was fine. I called my GP and he said to take 5000 every other day. Well, that didn't work out it either. So, I lowered it to 2000. That didn't bode well either. After the second call to my GP he told me to come off of it completely. Oh, I also know that my calcium is elevated too and was told not to take any calcium supplements about 3 years ago. Whew! Anyway, do you know why or how someone could be so sensitive to this? Now that I have stopped it is there anything else I could try? Thanks!

It is thought that Vit D supplements should not be taken by those with sarcoidosis.

One test for sarcoid is ACE level test.

Elevated calcium can come from low intake or low levels and the body then robs the bones for it. This is not an accurate system so excess is usually found.

Search around the net for primary and secondary hypoparathyroidism, and hyperparathyroidism. Some tumors of the parathyroid cause elevated calcium levels.

Thank you Mrs. D. But what if a person doesn't have the issues you mentioned? The only thing I can think of is that perhaps the Vitamin D3 interacted with medications I already take. Or, I am just simply to sensitive to it.

The amount of Vit D3 in a supplement is very tiny.
(units make the dose look high but it is infact very tiny in milligrams)

There is a drug checker here...that will screen drugs against some supplements:

http://www.drugs.com/drug_interactions.html

This is a pretty complete monograph:
http://umm.edu/health/medical/altmed...ment/vitamin-d