Hello
For years, I would sink into a depression that would last about 3 days. I could feel it coming on and for half a day, I would 'sink' into this blackness. It was so intense, I could barely move. Thinking of positive aspects of my life had no effect on my mood, and realizing this, I would sink deeper and deeper. The only logical thought in my head was suicide - the thought was the only thing that stabilized my mood. Fortunately, I was barely able to move so I couldn't act on this. I'd stay in this space for a day, and then on the third day, I would rise out of it again.

Recently, my partner noticed these episodes would come on a few days after getting really angry. Since then, I have avoided the intense anger, and haven't had an episode since. I still get angry sometimes, and stronger anger will bring a milder version of this 3 day ordeal, but nothing like before. I feel like these are obviously related, but is there a name for it? Thank you.