The Slide Of A Gun I Was Shooting At The

the slide of a gun I was shooting at the shooting range kicked back and cut my hand pretty deep. I had 5 stitches put in. the cut is toward the crease of the thumb and hand. on the thumb just more toward the inside side of the thumb. its numb above my stitches to the bottom of the finger nail. and its really tender on the one side of the stitches. idk if a muscle or nerve has been hit. or if I should see a doctor?