Signs of aging

I'm not into this whole getting old scene. I like to think I'm young and hip. Apparently I'm not. Here's the evidence. You be the judge.
I heard Ghost Busters on the radio on the way home from school. I told my friend, Kristin, who is 22. She wasn't born when that was out.
Kristin and I watched Pretty Woman together tonight. She remembered it from when her parents went to a screening of it when she was in like 2nd grade. She had only seen it once and couldn't appreciate the fact that I literally know EVERY line.
(Should I list some of my favs for you?
Mary Pat, Mary Kate, Mary Francis, Toba!! Get ready to have some fun!
These are broken. Mine are broken.
Oh! Groovy.
I liked it so much I almost peed my pants. She said she liked it better than Pirates of Penzance.
I could keep going...I won't. Feel free to leave your fav. on the comments.)
I fell getting into the tub the other day. It's metal and VERY slippery. I did some damage to my knee I think. It's got one of those yellow, brown bruises that is just hanging on...it's been a week! Go away already. And then someone had the nerve to tell me that I was lucky not to have broken a hip!
Kristin and I were out getting pedicures last week. The guy doing my feet asked if she was my DAUGHTER!!! She's 22. I almost kicked him in the throat.
Am I old?