Hi: I'm a pharmacist and I've never found anywhere reputable that says that D3 causes symptoms you describe, especially not at just 1000 Units/day. That's really low. Even the new guidelines call for 2000 u/day, although I take 8000 u/day. Many of us were shocked at how low the new guidelines were, considering the wealth of data that supports 5000 u/day or more.

I think as Doc suggested that it's coincidental.

Stacy