Hello!
Please remember there are various factors involved for the same condition. Firstly get an x ray done and your dentist will evaluate if there is any secondary decay below that filling.
Accordingly post both clinical and radiographical check up a diagnosis would be made and then the treatment can be discussed.
Next Steps
please visit a dentist ASAP and save the tooth rather then delaying and getting it extracted
Health Tips
Remember Dentistry is not expensive neglect is !