I knew it was coming - it was all feeling too good and passing without incident!
After the last couple of runs feeling great I did W6R2 this evening. I'd had a bad day anyway and was trying to cram in a run when I was already stressing about where I had to be later and how much needed to get done. Started ok, the first 10 minutes felt long. About 5/6 minutes in I felt a muscular like ache on the outside of both ankles (right worse than left). I considered it a mix of a mental roadblock along with normal running muscular aches and kept going. Once I slowed to a walk when the first run was done and shifted my weight I realised I could barely stand on my right ankle. I paused the podcast and spent 10 minutes stretching it out. Not sure if it was silly or not but it felt better after stretching so I carried on, very slowly, and finished the run. It felt a little achey towards the end but not as much as the first half. Stretched it out well afterwards and although it's a little stiff, it doesn't hurt anymore.
I have no idea which muscle/tendon/ligament was hurting! It was when I pushed the outside of my foot down towards the floor that I felt the pain/stretch. Any ideas? I think it's fine now but may have a couple of rest days and see how it feels.
At least I was (semi) ready for the bad run when it did come! Won't let it get me down - will get back to it when I'm sure that it feels ok which will hopefully be only a few days!