Vitamin D3 Problems

Hi Folks,

I decided once again to try taking Vitamin D3, but am again having problems. If I take D3 as part of another supplement, eg. fish oil, then I'm OK but even if I try to take 300IU of D3 on its own then I get tingling. I believe it's called sensary neurpoathy, but I may be wrong. My MS Nurse said that I'm over-stimulating the nerves and I'm worried I'm causing damage. I get the same problem with other vitamins, eg. B vitamins, and even with Canestan pesaries! I have Interstitial Cystitis which I believe makes me sensitive to medicines and chemicals.

I'd really like to try D3 again but don't want all these side-effects.

Any help?