Dealing with Impulsive Thoughts and Emotions

right now I'm having impulsive thoughts. I rarely get these in points where my emotions are all over the place. I mentioned before that I have high and low points in my emotions. right now I'm feeling more feelings then I have in a while and I hate showing feelings but I have more recently. people just get mad when I do but that's a topic for another time. when I feel impulsive I want to either stay up all night doing something or destroy something. how do you deal with this? is there a reason I keep feeling this way? any impulsive suggestions that are not dangerous or take away from sleep?