Thanks for writing to us,
I have studied your case with diligence.
As per your history there can be arthritic pain in ankle joint
By doing X ray
and clinical examination you need to rule out pain is occurring in ankle joint or subtalar joint.
Till time you can use supportive splint
You can take tab tramadol
for pain relief, and chondritin sulphate will help in arthritic pain relief.
Ankle joint replacement
is good option if pain is arising from ankle joint.
Joint replacement will give pain free ankle movement.
If you can send your x ray ankle then I can help you better.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.