I have Diverticulitis and was put on Flagyl 500mg and Augmentin 875-125mg. This is my 3rd day to take it. After I took the Augmentin, I started having some nausea, no vomiting, and a little dizziness & nausea. I haven t taken the pills at the same time, about a hour & a half apart. I m suppose to take the Augmentin again, but not sure to take it or not. I take both of with food..