I Think I'm Getting Old

People say that you age 5 times faster in the Army. I'm beginning to think that's true. Lately, I've been gaining weight.. and not the "good" kind. I've always been the kid with the crazy fast metabolism. Could eat all day and never gain an ounce. And just the other day, I was hanging out with my girlfriend, and I stood up, and thought I threw my back out! Thought it was nothing... 'til I woke up this morning and my back was killing me! So... thinking that it was nothing, I went to my basketball game today. Played 3 minutes before I had to sub myself out because of BACK SPASMS! What is going on?! As I'm sitting here typing this up, I'm trying not to move so much, because my back cramps up on me! Stuff like this isn't supposed to happen for another 20 years! Maybe I should stop drinking so much beer and go back to doing PT religiously... Just a thought.