I was struck in the mouth by an ex boyfriend a while ago which caused severe damage to my teeth and gums. Eventually it healed but my mouth shifted and has never felt the same. I now have 3 cracked teeth and one has formed into a cavity. I floss them often as well as brush them but lately when I wake up or randomly throughout the day a sharp pain comes back right around the cavity  usually in my gums. The pain ranges from uncomfortable to unbearable and often starts out of nowhere. I tend to brush them 4 times a day now to prevent the pain temporarily  which usually works but I know this isnt healthy. What is happening to my teeth and or gums and what can I do about it?  Please Help Me*
Hello, thank you for consulting with Chat Doctor. As you are mentioning that you are having cavity in the tooth, and now you are experiencing pain in the particular tooth, it looks that the infection has spread apically and now causing severe pain. You feel the pain in the gums as tooth pain is very radiating in nature, and you can not localize it. You should have the tooth restored initially only then it would have not progressed. But there is nothing to worry as you can get a root canal treatment done of the tooth. You should visit a good dentist and get it treated. Hope it will help you.