I think anything we dream is "normal". Our dreams help us process stuff either internally or externally; people with traumatic shock re-experience the accident in dreams, etc.

I think most dreams, like memories, are "shocking"/meaningful to us or we wouldn't remember them. And if we're dealing with illness or pain, mental difficulties, etc. then they're going to more shocking than pleasant. Think how you actually feel walking around day-to-day and the inner stuff that's going on? Don't you sometimes feel like you're being embarrassed "to death" and then brought back to life by having to keep going/functioning? No one chops off your "head" by telling you or implying they think you are stupid/are not "using our head"?

Dreams are symbols but they're your symbols so only you can figure out what you're trying to tell yourself or help yourself with. I use to have very detailed and difficult dreams when I was in therapy, many a night. You might want to start writing them down when you wake and doing date/day of the week, etc. and seeing if you can match them up with your waking life. I use to have certain dreams the night I had therapy :-) and fewer dreams other nights or we'd be working on a subject or my T would say she was going on vacation, etc. and there would be certain sorts of dreams as I processed it. Made dreaming "fun" even when the dreams were bad because it was like a puzzle.

Now that I'm no longer in therapy, I don't remember very many dreams because there's no "need". Whatever dreams do for me (everyone dreams multiple times a night) it's all internal, I don't have much inside that needs to get my attention by being "loud" so I remember and look at it to see what's going on with me.