A few days ago i hit my front tooth against a fork by accident. now it feels tender, almost like a dull throbbing pain. gums are swollen too. ?

See a dentist: You should definitely be seen by a dentist to evaluate the tooth and the gums. It's always best under those circumstances to take an x-ray just to make sure nothing is broken or fractured and there are no other dental issues unrelated to the actual trauma to the tooth. It's risky just to wait and do nothing.

Not good: It may be a root fracture. Definitely see a dentist asap for a definitive diagnosis.