I was pushing a car and slipped. Because I was stretched out from pushing my neck and shoulder area were close to the trunk of the car. When I lost my footing, my neck (throat) struck the trunk of the car. There are currently no breathing problems-just some soreness in my neck and hoarseness. This incident was about 24 hours ago. How concerned should I be now, and how long should I wait to see if the hoarseness clears up before seeing a doctor?