Running

Have you rested it at all?

Sounds like you are compounding an injury by putting more stress on it without letting it fully recover - http://en.wikipedia.org/wiki/RICE_(medicine)

Yeah, riced it after christmas then didn't do anything until last week. Last week it ached a little but not too bad, last night makes it difficult to walk.

Lucky for me work is starting to get busy so there's going to be a fair bit of walking and standing ahead of me.