i have been having grinding, popping, and cracking in my kneck for years now, and if it does not crack i will get a migrane. if i move my head in any way it will feel like something is messed up in my kneck and then it will crack, and relieves the pressure. this happen every day all day long and if it is so stiff that it does not crack i will have even more pain. sometimes when it cracks it seems like it is the back of my head that has just cracked, and then, if i have a migrane that day, it will take some of the pain away. it is a costant battle that i am in with the cracking, it is taken over my life. can anyone tell me if they know what my problem is?