bacterial infection
"I was prescribed Metronidazole 500mg 3 times a day for 7 days. I'm on day 5 and this is the worst drug I've ever taken. My first day I felt ok then after started experiencing extreme dizziness, bad headache, and nausea. My eyes started to hurt and by my 3rd day I had the worst stomach pain/burning for almost 2 days now. I'm not sure if this is normal or not but I've considered going back to the er because the pain is so bad."