signs of aging...

i woke up in the middle of the night and had to stretch because i was getting a cramp in my calf muscle. seriously... imagine being interupted from your womb-y slumber by sharp excruciation in your chiseled, well-developed muscles (har har...). then imagine your laziness overcoming the pain and drifting back into dreamland... only to be rudely awakened by a second, stronger burst of agony. then in your butt-nakedness (okay, i was wearing underwear)... fumbling out of bed and doing a lunge to exorcise the horrible leg-demon.

is this normal?!?