I went to chiropractor 2 days ago and he cracked my hips and my head. The hip crack fixed my alignment and the neck crack fixed a bad crack I did on my jaw.
So anyway that night I was smoking a cigarette and I just felt my neck was too tight so did some slow cracks to the left and right. After that I looked down then BOOM! the top right side of my neck shot up and cracked then the left. After that experience it felt like my spine was pulling my head so I took a few aspirins which stopped pain.
A little later I ran my fingers down the back of my neck and it felt like a xylophone. I could feel every vibration which had a hollow feeling and I could hear the sound inside my head lol. I took a hot shower and sat in a back massager for a couple of hours. I'm feeling ok now but my spine and neck are very sensitive and I have a pain about midway in my back.