In my 5 or 6 lucid dreams, I looked in the mirror once. My reflection didn't look weird or anything. I even changed the way I look for fun. I'm only like 5'8, so I made myself a couple inches taller. Felt weird growing so fast.

All these weird, scary things that people talk about that happen to them in lucid dreams don't seem to happen to me. My dreams were also never unstable and I never had a problem controlling them.

Maybe I'm just lucky when it comes to dream control, I have a natural ability. I also have a natural ability to miss the most obvious dream signs, and very rarely go lucid, so I guess it evens out, lol.