Having had a chesty lurgy thing for 5 (count them) weeks, I finally gave in and went to the GP last Friday and got some antibiotics. 5 days after taking them finally felt ready to try a run. Managed 20 minutes non-stop at my previous pace (which is pretty slow!). But I wasn't a wheezing, puce heap, which is what I feared.
So, even though I have been ill and poorly and non-exercising for 5 weeks, I didn't have to go back to the beginning. and I've managed to keep up the 2 mile walk to work.
Legs are a bit sorely, but nicely so. I shall doubt no more.
Phew, phew, Barney McGrew!
This shit really does work.
And really... thank you all for your encouragement and good wishes and advice - you're the shizznaz!