> I've gone over my carb limit (now that I'm almost completely
 > paleo, that's when I've eaten too much fruit or too many nuts)
 > because my feet swell, which really exacerbates my heel spur.

I broke a bone in my finger in high school. The lump on the bone grows
and shrinks. When I take high supplements it gets bigger and painful.
Vitamin C seems the worst, and A. Have you noticed anything like that?