Of course

You wander through the backrooms, moving much faster than normal. Perhaps your body has recovered. Perhaps your body is adapting to this new reality. Whatever the case, you move very quickly, finding these "rooms" and "hallways" empty. It feels false to call any part of this reality a room or a hallway, it's more like these are natural formations. As if these are caves that have been shaped through a millenia long process that you don't fully understand.

There is something hypnotic about this space. Have you been here for minutes? For hours? Did the other reality exist, the reality you remember noclipping out of, where you were going to bang every nurse within a hospital? That story, sounds more unreal than the backrooms. Did you go insane and convince yourself you were going to bang every member in a hospital?

You suddenly stop as you see movement, and hide behind a wall face. You slow your breathing, and stay as still as possible. Listening for movement. The piano notes you heard earlier seem to stop as well. You swear that your heart stops beating as well. The lights stop buzzing. The universe is silent.

You don't have any weapons on you. Your cock is completely soft. You are weak. But you don't hear anything. Anything would make a sound. Even a harmless bug would buzz. A rat would scurry around. In this silent universe, you would hear the heart beating in any animal. You would hear the exhalations. You turn, carefully looking. You see a pair of grim human eyes looking back at you. Part of a deranged face, but unmistakably human.

It's a mirror.