I get this semi-frequently, though almost exclusively those with negative emotions attached to them. It has either contributed to, been the cause of, or an effect of (or combination) chronic depression for over half of my life now.

Between medication and some therapy, I'm stable and high functioning, though I feel like I'm always one traumatic experience away from losing it.

I wish I could donate my active brain to science as it feels like there is clearly something not quite well adjusted about it, but alas, I'm still using it (most of the time anyway).