Today, while I was sitting in meditation (with my eyes closed) I felt for a solid five minutes like I was on a roller coaster. That I was being pushed to the left as we went through a turn and then somwhat back as we went up a hill, etc. But I was completely stationary and unmoving. That turn was actually intense enough that I found myself cursing quietly as it "happened".
This wasn't the first time I've had such strange sensations (probably once a month one will come up--I've had my head floating on the ceiling, riding the teacup ride at Disneyland, etc) nor do I think it's a problem. (I've certainly heard more than a little testimony to strange sensations when sitting from other meditators.)
My biggest question is just: any advice? How have you worked with it? What was your experience like? Do I take any meaning from it?