In reply to Bjartur i Sumarhus:
I noticed a niggle in my inner ankle about 12-18 months ago. Ignored it and carried on running. Sometimes it was painful but most of the time it was manageable.
About 2 months ago it got to the stage where immediately after a run the pain was quite strong. But what was most concerning is that it was especially bad first thing in the morning.
I went to see a physio and was given some exercises. I didn't really give them a chance as I had 2 weeks in the alps which I'm just back from.
This has really put me back and the problem has definitely got worse. The pain is now quite severe and shooting when weight is applied to the foot at the correct angle.
Everything I've read online about this injury says not to run through it due to the risk of creating a flat foot.
I don't have a solution but hopefully strengthening the ankle/tendon will be enough to make a recovery. There are quite a few detailed articles published online but no definitive fix from what I can see.
Very frustrating.