Yeah, but 5k/day is easier to keep up with. And 5k is still enough to trigger the symptoms... even after several days of 0 D3 and then a single dose @ 5k.
Right now I am suspecting a Vitamin A toxicity issue. I have read that D3 and A are synergistic, so maybe the heavy D3 dose triggers the symptoms? I have had A toxicity issues in the past (high dose CLO). I eat MANY sweet potatoes, so I've cut those out. In a couple weeks I will try another D dose and see what happens.