Starting Week 6 I think I got a bit cocky after the Week 5 twenty min run had gone so well. I upped my pace (and distance) on Friday's W6 R1 and spent the weekend with tight calves. Then on Saturday I was having a bit of a dance and felt a little pain in my shin. I decided based on the feeling in my legs that it would be best to delay Sunday's run and do a little yoga instead to stretch myself out a bit. I recall being in a similar situation last December when I ended up pulling a muscle on a cold day and that was me out for a couple of weeks. Then Christmas happened and I didn't pick up where I left off. Hopefully I made a sensible decision as I do like to stick to the schedule in my app as best I can.