[flamesabers]

Don't discount the getting older part also. It sucks!

I agree. Even though I'm still relatively young, I'm closer to age 30 than age 20. I'm expecting my physical stamina will be going downhill from now on.

It could be the loss of muscle density and bulk. Have you been loosing size?

I've never been bulky to begin with, so it's difficult to tell through direct observance. However, my weight has been staying the same while achieving breast growth and a feminine fat redistribution pattern. With these changes going on it's inevitable I suppose that my muscle density will decrease while my body fat percentage increases.