Hey all...I am new to boxing (5 months) and just started sparring. When you get hit, how do you know whether it's just a zinger or you're actually hurt. For example, I sparred a few days ago and got hit on top of my head (somehow!) and I felt a sharp pain in my neck. I pulled myself out and the pain was gone after about 10 minutes...but the neck is still very sore. Is that normal at all? Has anybody else experienced that?