I'm having one especially since a bacterial infection from a dental abscess, can it travel to the heart? what should i do?

Rare but possible: Abscess from one of the lower teeth can cause swelling of the floor of the mouth (your tongue becomes elevated) and that could compromise breathing. And if it travel along one of the fascial planes it could lead straight to the heart. It is rare but it does happen. You need to be placed on antibiotics and have the tooth evaluated for possible extraction or root canal. Don't wait.

See dentist ASAP: If you have an active bacterial infection from an abscessed tooth, you need to get on some antibiotics immediately and then get the necessary treatment to resolve the abscess: either root canal or extraction. Any bacterial infection has the potential to spread to another part of your body. See a dentist immediately!