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Vitamin D mega doses linked to early early waking?

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I have been always low in vitamin d. And when I am low, my sleep cycle goes sideways (I am not sleepy at midnight). And when I am really low I have bone pain and wake up with my nails embedded in my palms. So since starting to read this site I started taking my vitamin d very regularly and big doses (2000 -7000 IU in the summer).

I noticed that I was waking at 4am (after going to sleep at 11pm or midnight) and then having to nap mid morning. It wasn't too bad but weird (I am usually a night owl). I was also waking up with a start and heart pounding with anxiety. So I read all the advice here and ate nuts before bed, I took my vitamin d in the morning, and something else that I can't remember (I do a bunch of things every day and cannot remember which things go with which problems). I wasn't waking up with a start but I was still waking up early (I was now waking up between 3-5am). So I tried antihistamines, for a reason I cannot remember now (probably a thread here somewhere). I would sleep until 8am but was groggy for the whole day.

Then something occurred to me, if sufficient vitamin d put me on a good sleep cycle maybe too much made me wake with the sun? So I cut back to 1000IU. And here I am waking up at 6:30-8am (usually 8 hours after bed time) and not requiring a morning nap.

So does anyone know of a study linking vitamin d to extremely early waking? Has anyone else experienced this? If so, how do you adjust your vitamin D higher as the winter approaches?
 

me/cfs 27931

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So does anyone know of a study linking vitamin d to extremely early waking? Has anyone else experienced this? If so, how do you adjust your vitamin D higher as the winter approaches?

I take 5000 IU Vitamin D3 daily, and will take up to 20,000 IU for a few days for episodic mouth sores, facial sores, swollen lymph nodes, gum pain, etc. I do reduce or eliminate my Vitamin D intake if I've gotten sun exposure that day.

My last blood test 25(OH) was 75 ng/ml (normal range is 20-79 ng/ml). Reading these forums, I get the impression that I benefit more from Vitamin D than most.

I've never noticed any correlation between Vitamin D and sleep disruption.

I've only read about Vitamin D deficiency and interrupted sleep/daytime sleepiness. Never too much Vitamin D. For example, this paper suggests 60-80 ng/ml is optimal for sleep:

http://www.ncbi.nlm.nih.gov/pubmed/22583560

Recently, a small trial found 10,400 IU Vitamin D3 per day was safe and regulates immune response in relapse-remitting Multiple Sclerosis (I have relapse-remitting ME/CFS). No mention of sleep in the summary, but I don't have access to the full paper.

http://www.nationalmssociety.org/Ab...l-Pilot-Trial-Suggests-High-Dose-Vitamin-D-is
 
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