the stretching is paying off: no leg/knee issues today. i've been stretching thru the day, not just after running. and even after just 3 days, the breathing is getting less of an effort. i can keep up the cadence, the yoga breathing a bit more steadily. perhaps because i was thinking about things other than micro-focussing on my body. paid just enough attention, let my body do its thing. only marginally faster than yesterday's pace, but it felt so much better.