Hi Marky, Do you have access to a physio / therapist who can manually treat the ankle? I can't be sure of a specific diagnosis but there is obviously a restriction in the left ankle joint which could be caused by many things. typical reasons I have seen include the talo-crural joint itself which would require some form of mobilisation, typically a PA of the calcaneus. Could be your inferior or superior or both tibiofibular joints which may need mobilisation, or there could be a soft tissue block, most likely soleus (tightness just above your Achilles) which may need releasing or just stretching. How are you testing your range is it through weight bearing dorsi-flexion (knee to wall test)?, if so, do you feel any stiffness anywhere? Longer term I would look at your gait pattern, often something as simple as correcting your gait pattern in real time with someone giving you queues can help to integrate the correct muscles to improve lower limb control. Hope some of this helps even if it is a bit vague! Ben