Thank you for the info. After online research I suspected that maybe the Nexium I have been taking for the last few weeks might have caused a magnesium deficiency so I asked my doc to run that test. He ran that and other blood tests. Got a call from him that I am all normal.
So at this point I am wondering if my body is just having aches and pains since it is recovering from my previous use of prednisone or if it wants me to give it another round of the drug.
BTW, if you can stomach it or don't have severe GERD, I would get off the PPI longer-term (nexium). PPI's suppress stomach acid, make you more prone to infections like CDiff and can contribute to UC flares. I was on one intermittently for years for GERD and feel way better off it. Diarrhea is one of the side effects of PPI's.