Hello, NightWalker.

Sexual arousal is not a real problem, anyway, don't worry about it. It might just as well pass over time.

I would say it was a projection. Your inner senses are still developing, give them time.

Regarding the faces - I had a phase some years ago where I would see monster faces before falling asleep. They would always turn toward me and stare at me. Well, I didn't worry much about that and after a while it subsided.

Cheers,
Oliver