Hi,
I have felt some of those same symptoms w/ every thing moving fast & all but i also get repeated echos of voices in my head ( I'm not crazy) & I feel as if I'm having an anxiety attack so I just sit still till it passes it happens to me maybe once or twice a year. & it last for 1-10 mins also. & like you & can get it any where w/ a group of friends or if I'm by myself. It seems to get stronger each year.