Dream about almost falling off a roller coaster signifies conflicting ideas. Do not get too comfortable or too arrogant. You will regret the opportunities that you are missing out on. Your dream signals an aspect of yourself and your childlike qualities. You are too use to getting your own way.
Almost falling off a roller coaster dream signifies a physical relationship that you are involved in, but have no emotional bond. There is a situation where you just need to grin and bear it. Some idea or plan did not go as expected. The dream is an omen for fruitless labor, an emotional void, or loneliness. You are taking drastic measures to rid yourself of all the responsibilities and things that are weighing you down.
If you dreamt about almost falling off a roller coaster:
A colleague or possibly a romantic partner could be in a rather touchy mood today. Therefore, you might find this person difficult to deal with. You could get a bit irritated and wonder if this person is worth the aggravation he or she is causing you. Don't do anything foolish. This mood will pass. Try to stay out of your friend's way, if possible. All should be back to normal by tomorrow.