I cannot stress how much I (a) didn't want to go today and (b) kept wanting to stop all the way through and (c) never thought I'd make it to the end. But against all the thoughts in my head, I DID IT
And don't let the above snapshot of 24m 56s fool you - it was definitely 25 minutes !! Next time I'll carry on for a few seconds longer, just to satisfy Strava.
Next run Thursday. Let's hope I'm in a better headspace for it !!