Go see a doctor, how can anybody diagnose you from such brief description such as "my neck is in constant pain" You might have a trapped nerve or spinal damage for all I know, or you might just have a weak kittens neck. Go see a doctor firt and if everything checks out A OK then come back to me and I will teach you some neck training methods to make you stronger. I hope your eating and doing your basic work outs still you lil slacker ^_^ Peace.