Omnicef and kidney stones

I starting taking Omnicef Feb. 16, 2006 for Chonic bronchitis. Since the first initial dose, I have experienced brick red bowel movements, loss of appetite, restlessness from having to "flip" every few minutes to try and lessen the pain in my back and abdomen, and blood in my urine. After going to the E.R. I had blood tests, and a CT scan. I was told that no kidney stones were found so the problem had to be with the medication and stop taking it. It is now March 1, 2006 and I STILL have blood in my urine. I am going back to the E.R. today, and will post the results of this visit as soon as I can. But, I cannot believe after so many people have experienced these side effects, Omnicef is still being use. My 8 y.o. was prescribed Omnicef and I would not DARE give this to my child!