Thanks for your quick response and reassurance. Just to clarify -at the time of injury the pain was intense but resolved to very mild within 24 hours (at rest). Now (3 weeks later and having stopped seeing my physio) I have started getting the increasing 'tooth ache' feeling. I suspect that it is because I'm walking for longer periods. My physio thought that one of the ligaments ( sorry don't know which one) was probably completely ruptured with damage to other ligaments as well. The swelling seems to be in two distinct areas, one about 4 inches above the ankle and the other in front of the ankle in what seems to me to be a more normal place. Should I just continue with the exercises I've been given or revisit my physio? Sorry to add on to my previous query!