<s>[INST] My son has terrible back pain he is 13 was outside playing basketball shot the ball and felt like something snapped in his back and states that it hurt to breath Also said that when it happened he couldnt breath for a short time. He woke up this morning with slight back pain as well. [/INST] HiThanks for writing to us.The back pain could be due to muscle or rib injury.I would suggest you to take him to your nearby doctor.He may need chest Xray to rule out bony injuryWishing your child good healthRegardsDR Arun </s>