Well, today was the 2nd run in week 5. This is the week when it gets a bit more serious... On Monday I ran for 3 bursts of 5 minutes each, with 3 minutes' walking in between. Today was 2 bursts of 8 minutes with 5 minutes' walking in the middle. Until today 5 minutes was the longest stretch I'd done.
At the weekend I'll be trying for 20 minutes running with no break in the middle. Part of me thinks it'll be horrendous, but I didn't think 8 minutes would be possible either and actually it was pretty ok.
Who'd have thought?!