I broke my left fiblua at the end of last April. 8 weeks with a plastic boot, then off to physio. All has now healed, although my foot still feels a little odd. However, I think you should go back to the hospital where they treated the fracture. Doesn't sound as though it's healed correctly. Perhaps you should have a MRI scan to see if there's still damage, but it's probably just all the ankle ligaments that are taking ages to become elastic again after all those weeks of non-use. Chox.