Hi, just today my tooth started hurting like .... I have never had a cavity before and thought it was one, but how come it just started hurting all of a sudden? It is the bottom row canine tooth. It hurt when I ate untill I flossed it real good, brushed it and put mouthwash on it. Now I can eat with little pain. Im going to the dentists tomorrow. I'll post additional details if you guys ask questions