Thanks all for your support. Completed run 1 of week 5 this morning and, without wishing to speak too soon, I feel ready for run 2 already.
Run 3 continues to bother me a bit (20 minutes) but I shall cross that particular bridge when I get to it.
One area where I did struggle a little bit this morning was with my breathing. I am trying my best to take large breaths in through my nose and exhale through my mouth but everything is going in and out of my mouth.
This works for me but does anyone have any tips for helping me with my breathing?