This happened once or twice when i was 10, and just happened again recently.
What happens it, out of nowhere my mind will suddenly go blank.
then for about 4-5 minutes, everything around me seems to be going faster, and all sounds seem to be much louder. When people talk it sounds much more urgent, and even if i lay down in a silent bedroom i can still feel it, that everything is moving faster, and i can hear every little sound louder, then it would stop and go back to normal.
What is this?