Why do my teeth hurt sometimes?!
Question: Why do my teeth hurt sometimes?
Answers:
It can be hereditary, but usually it's from sensitive; teeth, gums, and or nerves. Most people have sensitivity in their teeth, but some worse than others. They make toothpaste for sensitive teeth. But a lot can be from the temperature of foods and drinks that humans consume; cold or hot.
It's possible you have a gum infection. You should see your dentist again and let him know whats happening to you. Sometimes an X-ray is needed to get a good idea of what's really happening inside your mouth. Try using an antibacterial mouthwash until then. :-)
Maybe you just have sensitive teeth try using sensodyne toothpaste. Might help.
Good luck x