I recently had a abscessed tooth fixed that was pretty severe with a whole month of taking clindamycin. two days after having my tooth fixed I started expierencing severe headaches, pretty much migraines, and nausea at the end of my 12 hour shift which goes from 7 am to 7pm. This lasted for about two days. I was ovulating last week and had unprotected sex, I took a pregnancy test on sat, which came back negative. Im still expierencing the severe migraines( which is causing sensitivty to light, noise) heartburn and nausea. I also just recently cut my welbutrin dose in half from 300 to 150, so I know it could be a multitude of different things. Just curious....