The problem with teeth is the the only sensation the nerve in a tooth can feel is pain. There are many causes of tooth pain ranging from chipped or broken teeth, exposed roots, cavities, cracked teeth, sinus infections, wisdom teeth coming in, among others.
Having experienced severe pain myself, before I became a dentist, I know how excruciating it can be and will do my best to diagnose the cause of your pain and get it treated quickly.