I have been running for about 8 months following the 80/20 rule, checking my HR and pace etc etc. I found myself getting a bit obsessive over my pace and HR and it causing my a bit of anxiety on off days so I decided to change my watch over to display distance only. When i was running my easy days i was at approximately 6'35 - 6'45 min/km, but now I am running without checking my pace and going by my breathing only I am averaging 6'50-7 min/km. I am running to keep my breathing rate low and effort easy - am I maybe being too conservative now I am going by my breathing? Or could I have been running at a bit too fast a pace before? my longest run at 6'45ish was 18km and by the end of it i was finding it relatively tough - but i wasn't completely depleted. Has anyone else found the same?