It's sounds like you could be experiencing episodes of depersonalization/derealization. People describe these in many different variations, but at least two of the symptoms you've described are very common. The first being a very intense sensation (I can't describe it, but it affects my entire body) that reality has become warped somehow, we feel out of sync with the world around us.Everything looks the same but different...........until one has experienced this personally, it it nearly impossible to explain. The second common thread is how really frightening it is. You don't know if you've just crossed over into insanity or maybe this is what a stroke feels like..........When it's happened to me, I immediately go into a panic attack. Nobody has ever stopped to ask if I'm OK. I think it's because I must actually LOOK crazy.
Depersonalization CAN be a symptom of other psychiatric disorders. In fact, depersonalization is the third most common paychiatric symptom after anxiety and depression. As a seperate disorder, depersonalization disorder hasn't been studied widely, and it's incidence AND CAUSE AREN'T KNOWN.
Most people only experience a few episodes of DP in their life. But some live with it on an almost daily basis. There is treatment but the outcome is considered "iffy" for the most part. Probably because they don't as yet really understand what causes it............so they don't which part of our brain to target.
I would suggest, for your own peace of mind, to speak with a p-doc or neurologist about this. My neuro told me that people with migraines, (ME) have a higher chance of experiencing this than those who don't. I feel ever so special...............
I have had quite a few of these "attacks" and I haven't died, gone crazy, killed anyone or experienced any sort of lasting effect. My brain MRI's show absolutely no abnormalities. He's put it down to wires getting crossed momentarily and I'll buy that since there really is no other explanation.
I know how scary they are and how much I hate and fear them, but it helped to discuss them with my doctors. At least they knew what it was, which was the first major relief for me.
I wish you the best.
Maybe we'll meet in a time warp some day!
I'll have a flower pot on my head.
Peace
Greenlydia