I have found my answer to the suggested magnesium intake and dealing w IBS, topical magnesium.
I have a written prescription for 10% magnesium cream compounded by a pharmacist, small amount applied in alternating places forearm where ever, helps wonderfully, actually better absorbed this way and great for the skin.
No IBS or colitis irritation, no horrible spasms any more. No weird fillers to react too. Nice.