hello there ,
cannot be related to the dental pain as you have been with the tongue ring for about an year now.
indicates bacterial decay or infection in the tooth that involves the exposed tooth nerve tissues .
such infected tooth needs to be treated by a root canal
procedure so please consider getting the treatment done by consulting a dentist
you may need an OPG radiographic examination done for your teeth to confirm the spread of infection or to rule out the exact cause of the pain.
Start with the course of antibiotic Augmentin 625mg along with analgesics like aceclofenac
two times daily for 3 to 5 days .
i hope this helps ,