(I didn't want to put this in Serious Discussion because I feel like I'd honestly get better advice here)
So, recently I've been getting small bouts of just feeling down for no reason after having been happy and joyful just a few minutes earlier. It'd be one thing if this just happened once or twice, but it happens fairly frequently with me, though I may not show it as much (as opposed to if there IS a reason I'm down and depressed, then I vocalize it almost too much).
Does this sort of thing happen often to anyone else, and how do you think I should go about maybe reining in the problem of not outright eliminating it?