bacterial infection
"I've got a large abscess in my gum. I was prescribed amoxicillin 500mg, but it has not helped one bit. I've got my tongue, lip and belly button pierced, hard lumps started forming next to the piercings, making them uncomfortable to wear jewelery in. I had to take them out. My mood has changed, I have become unusually irate and depressed. The medication also smells very strong, and very weird."