Has the dark side of your personality ever tried to assert it's self over your thoughts and what do you do to stop this?

I’m usually a happy go lucky easy going guy, but for some reason my mind wants to go into dark places recently. Nothing major has changed in life that I can think of and no medical reasons for it. Spring is in the air, I should be upbeat, but I just have these dark thoughts. I’ve even got a few comments from jellies about this. Any thoughts why or how to deal with this? I realize this is a lousy topic for Easter Sunday, so feel free to tell me to suck it up (I’d say “man up” but I see Simone is in so I have to behave).