Backstory: I haven't ran in a decade. I'd dropped from ~300 to ~190 by cycling+some swimming, felt great. Dropped swimming to start running again. It was wonderful; I loved it. My plan was to start running 10 minutes at a time, two days a week. First run was ~11:30 mile pace. Every week, add another day to that until I was at 6 days. Then add two minutes to every run per week, until at 30 minutes. Then do hill sprints twice a day for 30 minutes(hard up; easy down). And slowly work my way up to the BarryP 3:2:1 proportions. Instead, I felt great, loved running again. Absolutely loved it. and was doing 45 minute runs 3 days in a row on week 2. Then I went for 60 minutes because what the hell, I felt great. At a 9:15 mile pace(2:15 faster than day one less than two weeks before). And my ITB's said, 'sit down and stfu' so here I am. :(
The worst part of it was I felt pretty good after that 60 minute run. I can't explain how happy I was to have finally thrown off the yoke I was carrying when fat. I was finally approaching trim, and felt really confident and fit about my body. That run was GLORIOUS. I think it made me happier than settings PRs did in HS XC/Track. I was jubilant. And then my body betrayed me.
Or I was dumb and mistreated my body. Y'know, whatever. I like the other narrative better though.