I've been getting these really weird pressure type feelings going up the back of my head and it's freakin' me out, it gives me a rush of panic. I have a plate in my neck c5/c6. and recently had an MRI of my whole spine. I've got some 6 & 7 mm herniations in my lower back and one below the neck plate. I also have tmj and wear a night guard when I sleep. Can the tightness of the muscles in my neck and or jaw cause this sensation? Makes me have to take Xanax and not do all the things I used to do... makes me sad alot.. I've had numerous tests except any imaging on my head and everything has come back fine.. I recently had my Gallbladder removed and all the testing I had prior, to find out it's my GB is how I found out nothing seems to be wrong with me physically.. eyes were okay... lungs were fine... no heart tests except ekg and no head scans yet... I'd just like to start feeling normal again.. and not like I'm going to freak out...