I am loving this people! I am so relieved to hear that someone else has mirror "issues". Ever since I was a little girl I have been fascinated with staring at myself in the mirror for long periods of time (okay, 10 minutes. But still, to be 11 and stare at yourself for 10 minutes, that's a little strange) in order to induce a strange out of mind experience.
It's kind of like saying your own name over and over until your own name sounds wierd and unfamiliar. Except the name thing is kind of funny, but the mirror thing is SCARY ASS STUFF. As I stare at the image that the mirror claims is me, the image begins to become more and more alien, I am profoundly aware that the image is supposed to be me, but my true self inside, begins to feel profoundly separate from the physical image, and I realize that I am not what I see, it is only the puppet I have been housed in. One time I spontaneously said out loud, "so that's who they put me in." The out of reality experience gets deeper and stronger and deeper and stronger until I feel I am on the cusp of some extraordinary revelation, (maybe, the mirror image will shatter and the real me will be revealed? Or I'll see the real world beyond the skin of the fake reality?).
The feeling is so overwhelming and terrible and alienating, I avoid looking too long, I've found that if I make a stupid face or stick out my tongue I can stop the process. Thank goodness I'm funny looking! Never look in the mirror in the dark, if you stare long enough you will see your own death.