It is not visible clinically ,but based on your history it might be Sialolithiasis(stone in salivary gland ) but it can only be confirmed after taking radiograph ,visit ur dentist for proper check up
For small stones, stimulating saliva flow by sucking on a lemon or sour candies may cause the stone to pass spontaneously. In other cases where stones are small, the doctor or dentist may massage or push the stone out of the duct.
Next Steps
Visit your dentist for confirmatory finding