I probably haven't felt "good' on a run for a couple of years. I'm early 50's, been running for 37 years, and I really miss those days of feeling light and fast. (I'm not fat, but it hurts run fast.) My hips are tight, and the old stride is getting shorter and shorter. I don't stretch because my brief forays into stretching seemed like a waste of time.
Anyone out there REGAINED that youthful feeling of flying over the landscape? Is there anything we veterans can do about this, or should I resign myself to shuffling the rest of my life? (I can still manage mid-18:00s for 5k and sub-3:00 for the marathon, but it sure ain't fun!)