“hits” should be “hit”42 You lose your balance, and it forces you backwards. You bump into sharp objects; fall over and hits your head; stumbles, severely twisting your ancles and wrists. Take two points of damage.
“overwhelms” should be “overwhelm” in this sentence.62 As you grapple with a walker, you failed to notice another walker on the ground reaching for your leg. It takes a huge bite out of your calf. You fall screaming as both walkers overwhelms you. You’ve lost a mortal amount of blood before you hit the ground.