Sometimes, when I'm in the right mood, I start emotionally experiencing extreme hatred towards everything/everyone. I cannot calm down/find peace before I've imagined myself killing/hurting people in the most brutal and disturbing ways I can think of. Problem is, it feels like I really want to do it. If I actually had some sort of weapon near me while in this mood, I might actually go out and do it to someone. Afterwards, when I've thought about it enough, I always calm down, and I feel horrible about myself thinking like this/wanting to do this for a short period of time, and I realize that I really don't want this to happen/that it is pointless. From then on I go on feeling sad, depressed, and sometimes nearly suicidal (mostly because i hate myself for thinking like this, even if it`s for a short period of time), for a short period of time, before I return to normal. Usually I don`t have any sort of hatred towards people, and I always try to be nice and understanding, but sometimes my brain just kind of snaps, randomly, and I get these extreme, random feelings/thoughts. Is it normal to get these sort of episodes?