Not PTSD, but not normal anxiety either.?

Hello. I have been having trouble understanding a certain part of myself that's been active all since an incident in 7th grade. I have chronic anxiety and take medication for it, but one day in seventh grade was not one of those days. I was in a technology class, and had been grasping the back of my neck all that school period, which was a coping mechanism that I had. I didn't realize this that entire end of the year, but I was pinching my nerves. It was constant until the year ended, and the pain had frightened me to a point where I called my dad to pick me up so I didn't have to ride a bus while having an anxiety attack due to my paranoia.

I still have a tick that allows me to tilt my head a certain way quickly that I get when I'm anxious, and although I havent felt that sort of continuous pain since that day those many years ago, I still get occasional panic attacks over it. I still am strangely afraid that I may feel that said pain again, but know I most likely won't. I would like to identify as somebody who has a mild form of PTSD, but the severity of that said mental illness is way higher than of mine. I was wondering if I could have some input or opinions, thank you.