What a relief to see I am not the only one!! I have a 6 month baby with an ear infection. They treated her with Omnicef and started being gassy, fussy, crancky, vommiting..... On day 5 she had a very bloddy stool, we took her to the hospital and tested it, the results were negative. They did not tell us it could be a side effect form the antibiotic just to stop taking it. It was very scary!