For as long as I can remember I have had this sensation (and before you ask, I am not smoking anything). The feeling only occurs when I am in bed and starting to fall asleep, the only way to describe it is a strange feeling of big and small at the same time. It’s like a very tiny dust particle that seems to be as big as a mountain. Sometimes it seems like a point of a pin with a massive amount of potential energy behind it. At times it can be very intense to the point where it scares me. Sounds seem to be louder and more intense also. I seem to get this feeling about 3 of 4 times a year My brother is the only other person I know of who has experienced this feeling other than me, he describes it as a pebble that seems like an enormous rock. I was just wondering if anyone has had the same sensation or if it has a name.