Never had problems before but flew from Mexico to Canada in July and my ankles swelled up like balloons. Problem is, they've improved, but still painful and slightly swollen now - in October! Why would this last so long and what might be causing? Dr. told me I had fallen arches (ha!), then gave me a shot I suspect was like cortizone - masking, not curing. Pain returned after several weeks. Any info/suggestions, anyone?