In reply to LastBoyScout: Thanks for that, i'll give it a try in the next few days once it feels upto it.
The comfi grip seems to have really helped it a lot, can walk confidently on it. Booked an appointment for 4 at the doctors so hopefully it'll be fine and I won't have to spend my friday night in hospital.
I think thats what the initial problem was. I was running in a dissused open cast and had been running on a dirt track and decided to cut across a grassy plain and it was at a downward angle and the ankles been stretched slightly while running. The 2x i turned over on it yesterday just stretched it even further.