Is it normal that sometimes...
--when I'm walking around, having a normal day I suddenly get a flash of something horrible happening to myself or others? I could be walking with a pencil, and suddenly imagine that it's getting jammed into my eyes, or I'm using a knife and I suddenly imagine a scenario where I accidentally stab and kill someone. My brain works out all of the gory details, and the vividness really disturbs me at times.
The thoughts are usually very quick, but at times they linger and I have to stop whatever I'm doing and just take a deep breathe because I find the thoughts terribly disturbing. It isn't a constant thing, just something that pops up from time to time.
I think my mother has this problem as well, which is why I had a very safe childhood. She had those types of flashes, and then would make sure that sharp edges and possible hazards in the house were taken care of.
Is this normal?