Is this normal to get buzzed of alcohol this fast?

Im 5'10 15 years old (16 in august) and about 120 lbs. ok so last night i was playin beer pong with my bros friends, i think i was buzzed but im not sure, i probably had around 3-4 beers and i was light headed and couldnt stop talkin lol, i remember the whole night. ive drank before but not this much lol:P