Chest Pain after hard fall?

on thursday afternoon, i was playing basketball in the driveway when a collision with another player (that didn't involve my chest) lead to me smacking the driveway on my chest, as well as scraping my arm. the arm is fine, but my chest is in constant pain since. when i go to take a deep breath, the tightness or bruising in my chest restricts me from getting the full breath. i also feel out of breath more than usual when doing activities. there is no redness or swelling or bruising, but i can feel somethings wrong. it is on my left side (heart side), not so much the sternum. i have a heart condition - HCM, (hyrpothropic cardio myopathy). could that be affecting this? please let me know asap on what this issue could be and what i can do . thanks. ps im 16 5'5'' 140lb