Hi, Thanks for using HCM.
There may be some tissue injury
like ligamental or muscle injury or even nerve damage
which has not recovered properly due to improper rest and management. So this may be causing you problem even after a year or there may be new injury which you dont recall. Get one Xray done and consult your doctor for examination once and management. Now dont over exert it and give complete rest. Use correct fitting shoes with soft sox. Hope I answered your question. Feel free to ask me if you have any further queries.
Wish you good health. Take care.