About a year ago I used an inversion device and ever since then I've had a problem with my neck. The top of my spine/back of my neck, for lack of a better description, makes a very loud "crunching" noise when I turn my head to the left or right. I can hear lots of little bones rubbing together. It's worse upon waking. I do use an orthodic pillow at night and this helps a little.
I haven't had pain from it, but for the past few weeks I've had a bit of a headache and I'm wondering it's related to the noise becoming worse.
What the heck is wrong??