<human>: Can you summarize the given text in a few sentences?

Three nights ago I slipped on a wet restaurant floor and fell flat on my back, but I instinctively kept my head up. The fall sorta looked like this:   
  
The thud made when I hit the ground was so loud that the waitress started shrieking. A middle aged man helped me up and told me that I'm lucky I'm young (20-something otherwise healthy male), because he'd probably have to go to the hospital if he fell like I did.  
  
I woke up the next morning feeling fine, but over the course of the day the front base of my neck (below the Adam's apple) started aching. It hurt when I tilt my head backwards and looked straight up. It also hurt when I spoke, unless my head was tilted down when I did it. The day after, it hurt to open my mouth wide enough to eat, but I've since gotten over that. But the ache when speaking and head-tilted-back thing are both still there and it's bothering me. My dad happened to have a foam neck brace from a car accident years ago, which has come in handy these past few days.  
  
Do you think this could be serious enough to see a doctor? I'm traveling next week on business and I would need a really, really good excuse to skip it for what seemed like a pretty minor fall.
<bot>: Slipped on a wet restaurant floor three nights ago, now concerned about neck aches. Important work thing next week, can't afford to skip it unless I have a really good reason. Should I see a doctor?