I have an abscess tooth with draining out of my inside gum into my mouth. After having the abscess, with very little pain so I did not know it was an abscess, I started to get a stomach ache especially at night. I am going to the dentist Tuesday for a root cannel fix and re application. Does anyone know if a tooth abscess can cause stomach pain or ache. I don't want to be jumping to conclusions about this pain so any advice would be great thanks