Is it possible that these are small injuries you’re acquiring throughout the day which only appear as bruises and scratches the next morning? (Sometimes bruises take a while to show up.)
I’m a very clumsy person, so when people ask me where I’ve gotten this bruise or that, I honestly can’t say. I don’t know. (Some people, like my doctor, have taken that as a sign I’m abused.) I bang into, trip over and smack into stationary objects so many times during the course of the day that remembering a single injury is almost impossible. It might have happened when I walked into the corner of a wall. It might have happened when I tripped on the stairs. It might have happened when I ran into the doorframe, and etc, etc.
As a result, I’m always finding new bruises and scratches on my person when I look at myself in the shower in the morning. “Huh. Wonder where THAT came from.” Had a grapefruit-sized bruise on my thigh last week, and I can’t remember how I got it. Must have walked into something, and you’d think that I’d remember something that left that big of a bruise, but I don’t.