question: I hurt my lower neck golfing. Right where the lower neck meets the upper back, it feels like I was hit with a hammer on my spine. My muscles in my neck and shoulders near the neck are very stiff. I do not have tingling in my arms or hands, just stiffness in my neck. what is the best way to fix whatever is wrong? I am a very active 59 year old male and have been doing crossfit for 5 months with no injuries.