I did 2 of the week 4 runs before getting a tummy bug which laid me up for a week, then repeated the whole of week 3 which was fine. I did first run of week 4 on Tuesday and was telling myself I know I can do it as I have done twice, but on the final 5 mins I got really severe back pain and had to quit after about a min and a half. So annoyed! I have week 4 again today and am worried about the back.
It might all be mind games? Although the back pain is very real
Any thoughts or tips?