It sounds like I have rice crispies in my head. This has been going on for about three months. I do not have pain in my head. I started with a cracking noise in my neck and the lower part of the back of my neck. Now it has moved to my temples, side of my head and various other area's in my head. It happens more in the evening or maybe that is just when I notice it more. Especially after lying down. It is very uncomfortable and worrys me.