When did I get old?

Have you ever just woke up one morning and thought, when did I get so old? That has been happeneing a lot to me these last few days. I mean, I know I am stressed with finals and I am over 30, but I have never felt old until this past month. I am tired, cranky and I get mad at loud people. I AM a loud person--at least I used to be. I am pretty sure I am broken. I used to be so social and outgoing, and lately, in a social situation, unless I know someone I don't even bother. I don't know if it's becuase I am now shy (unlikely) or if I am just to tired or bored to really care. My life is boring. I think that is one reason I feel old. I get up. I go to school. I study. Then I am tired and so I go home, watch a little tv and go to bed. I'm not necessarily unhappy--just bored. But I am also to tired to do anything else! Talk about a predicament. I don't want to feel old. I am not old. But lately I have been acting like an old lady--and not a funny one--a boring one. Yikes!