WHERE HAS THE TIME GONE?

Someone please tell me where the time goes! The older I get the faster it flies by. My children should still be in diapers, shouldn't they? (Boy would they hate to hear that one :-)
It's like they no longer need me, except for money, laundry, meals, borrowing the car, car insurance, living expenses, clothes, etc., okay they still need me a little bit. I suppose they just no longer need me to answer life's important questions. For instance, where do babies come from, why is the sky blue, why is that person in a wheel chair, why do nursing homes smell funny, I could go on, but I won't.
Time is strange, one minute your in your mid twenties, have a home, children, husband, the next minute your in your early forties, wondering where did I put my keys? What I hate the most is; okay, why is my body hurting in places I never knew I had? In my mind, I'm still a young person, but my body is saying, "oh, no your not!". Or even worse, how can that part of your body sag???? And, if I ever hear, one more time, "your only as young as you feel", well, PEEEE UUUUU! I feel like I'm on the edge of the hill I've been climbing all these years, just about ready to go over the edge. Well, at least I stil have my mind, now where did I put those keys?