What Causes Difficulty In Walking Straight Post Treatment For Multiple Fractures?

Ok hello I broke my ankle in three places three years ago they put hardware in and had to removed it ten months later now three years later I still can t walk straight still have a lot of pain it still reddish blue like in color its sensitive to cold when anything rubs against it. What should I do what can it be ive been to physical therapy a lot and reached a Plato.