Well, I took advantage of the weather being not rainy for a change, and did my second run of week 4. I noticed my first run seemed to be a little speedier, or rather a little less slow, but it felt fine, so though I did back off the pace slightly, I kept going.
I was surprised to pass the usual half way point before the half way point, if you see what I mean, and I actually got to my furthest point along the canal towpath before I had to turn round. By the end of the 2nd 3 minute run though, I was flagging a bit and the walking segment was very welcome. However I had all the encouragement from you folks going round my head, so for the second half of the last run I went for it, as suggested by Jo in my ear, and you know what? It was great. I felt great. Hot, sweaty, but great.
Can't wait for run 3, and I never thought I'd say that
Once again thanks to everyone who has encouraged me so far, you are all amazing!