I'm a 35 year single woman weighing 60 kgs and height 5 feet 4 inches. I've been pretty active, esp last year I trekked for about 10 days to high altitudes, while in the city took power yoga, zumba, and weight lifting classes. Ran twice a week. I've experienced sharp unbearable pain in my ankle. No fractures and sprains. Parents have flat foot, docs have been telling me it could be due to that. Can't stand for more than 2 hours and walk continuously for long. Pain killers have not helped much and I do not want any more pain killers. How to treat the pain and condition of flat foot? please suggest. I'm wearing silicon medial arches now.