I was on my daily 3 mile run this evening. Running on the sidewalk, I had to lower my head to avoid an extending branch. While doing so, I heard a large cracking noise from my neck. I kept running. Currently it doesn't hurt and after I did so it did not hurt. Is this normal? Should I worry? Now I can't stop "paying attention" to my head's movements. Sort of like paying attention to every time you blink or breathe. I'm self-conscious if I'm moving my neck too much, too little, what others will think.
Man, I'm really messed up right now. Someone help, please.