Updated 1/1/13. Again.
I’ve tried vitamin D3 three times over the past ten years and each time have been stymied by side effects: first, splitting headaches and later, the addition of a white-hot-iron-vise-crushing-my-lungs sensation. It’s definitely not D toxicity/overdose — there’s no way in Hades I could’ve gotten my D levels up too far that fast.
The fat-soluble vitamins (A, D, E, K) all compete with each other to some degree, so my first experiment was to try each of them, thinking I was inducing a deficiency. For a while, vitamin E stopped the headaches, but after a few weeks didn’t help. When I finally realized that vitamin K comes in supplement form — did I mention the brain fog? — a few months before I originally wrote this post, I discovered that it helped the breathing problem a lot, at about 2,000 mcg.
FYI, low levels of the various fat-soluble vitamins seem to manifest as follows:
— A: inner-ear pain, dry eyes
— D: back pain, abdominal pain, insomnia
headaches not sure anymore
— K: killer menorrhagia, difficulty concentrating, difficulty breathing
Calcium, magnesium, and zinc also work with vitamin D3 and thus might end up being depleted with big doses of D. I definitely need to take them when I take D3 for more than a week, but they don’t address the headaches/breathing issue.
Two months after that, I discovered that thiamine (vitamin B1) in the form of TTFD got rid of most of the headaches and the rest of the breathing problems. However, when I take enough D3 to correct deficiency symptoms (fatigue and abdominal pain), the amount of thiamine needed to stop the headaches completely stops me sleeping, as does the vitamin K. Eventually the thiamine stopped working headaches-wise anyway, where before it would halt them within 20 minutes.
After reading this article about copper poisoning, I learned that vitamin D in big doses — or anything that needs copper to work — can induce a copper dump if you happen to be copper toxic. (I think I understood that correctly.) So I started thinking in terms of copper detox. After following what detox guidelines I could for a few weeks, I started vitamin D again in January 2013. I’ll keep ya posted.