I believe more than 2000IU per day is not recommended and is the conservative upper limit for safety. I was taking 1000mg at first but then increased to 1400 - 2000IU per day. Those who have a VitD deficiency are obviously prescribed more. I read a couple of stories where some people had an adverse reaction to taking Vit D supplements and maybe I fall in the category of those people.
As for the B-12, I read a couple of stories of it helping the inner vibrations. I thought I may have had a B-12 deficiency but my numbers were on the high side according to my blood test. My GP told me that too little is not good but that in some cases too much B-12 (according to some studies) can result in unwanted side-effects and medical conditions. My endocrinologist pretty much told me the same and since my system was already out of whack I decided to take her advice and lay off the supplements.
What symptoms do you have if I may ask?
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