Old back injury comes back?

okay i am not old, i am 16 but back when i was 14 i was on a trampoline and i landed wrong and it felt like a vertabrea was hurt and just slept it off. but 2 years later i was playing basketball and when i landed in the same spot from the trampoline and the same pain happened but much worse and it was hard to breathe it felt like my lungs were constricted, should i go see a doctor or should i try and sleep it off again? it hurts when i flex my back also.