Hello sir....
you history seems you have sensitive tooth or you may have cavities in between teeth..
sensitivity may be due to enamel loss(Due to faulty tooth brushing)Or gum recession which expose the root.....
Get X-RAY(IOPA) and bite wing radiograph of the involved tooth region done to rule out caries in between tooth and hidden occlusal caries...
Next Steps
kindly visit dentist for furthur management
Health Tips
use densitizing tooth paste