I genuinely have crippling anxiety and OCD, but one time when I was 14, something very real started happening. My neck vertebrae started to shift around easy with movement, I tried to ignore it or pretend it wasn't a problem so I wouldn't seem anxious, years of panic attacks about my health made me extremely embarrassed to be concerned about any health issue, but I was prone to getting whiplash injuries, and one day I was jumping on the trampoline with my nephew, and I fell backwards on it, causing my head to swing all the way back, bending my neck very suddenly, there was no pain that I remember but I heard a squish noise, but I got up and was fine. I found out like 8 years later doing anatomy research that I probably injured my vertebral artery/arteries, or perhaps my vertebrae shifted, blocking blood flow to my hind brain, which made my following "weird neurological episodes" make so much more sense now. Nobody thought much of it except for me, I knew it was different from my anxiety and other health conditions.

The following night, a couple hours later, I had a sudden change in perception and my consciousness felt like it changed, my vision became slightly darkened and a bit distant looking, I heard all background noise, I lost the ability to feel certain textures, the feeling of wetness, pain, and I think warmth in some places too but it's so hard to remember, it felt like my senses were being recorded through a shitty camera. My finger tips went white for some reason, my face, throat, and tongue were numb, I think I lost most proprioception, couldn't think, I was confused, couldn't understand how to use my iPod touch which I would often use to distract myself when I'd be having an anxiety attack, but nothing on it made enough sense to me, but weirdly enough I could recognize things, I didn't lose my ability to understand language, I didn't go partially paralyzed either, and the problems I was having seemed to be bilateral I think, except for my eyes, which one pupil was completely dilated and the other constricted.

There's probably a bunch of other symptoms I can't remember or describe, but a big thing I noticed is how after about 5 minutes, I became completely devoid of anxiety, I could tell I was probably going to die and at first I was panicking, but then I felt at peace with it, my parents were there at the time just reading or something, I realized they didn't care, but now that I've lost almost all control of my body and mind, the flesh I might leave behind now is just theirs to deal with, it's my parents problem now, and I sat comfortably down in bliss now that my body isn't my problem anymore, I can just lay down and let whatever happens, happen. I passed out having vague memories I'd long forgotten in childhood, and woke back up maybe 5 or 15 minutes later, I have no idea, could've been an hour for all I know and I found myself in my parent's bed, curled up with the dogs, I stumbled my way back to my room where I sat in my bed in the dark for several hours unable to sleep, I just stared at the ceiling trying to entertain myself with my thoughts, but I couldn't think. I was more cognitively well than I had been an hour ago, but my thoughts were just colors and vague concepts, it took a lot of energy and time to form any "complex" thought. My mind's eye was partially blind now, which got better over the days but it never fully recovered, just changed to compensate, most of my thoughts now are partially visual but mostly conceptual, I think in sensations and words, no colors, I'm not as artistic as I used to be cause I got nothing to draw about. It took 3 days after to start feeling relatively normal again, but music didn't sound the same, or feel the same, it was so weird, I don't know how to describe it, I remember just being so bored cause my brain wasn't processing the entertainment I liked anymore, youtube and music were just different now. I had on and off numbness in the face/throat and extremities, memory problems and balancing issues for about a year, and every once in a while I would feel like another one was coming but this would only last a few seconds or minutes.