foot and ankle swelling on left side only, no pain, not hot or cold, normal color, have had numbness in ball of both feet for at least last 10 years. Taking a potassium pill each night to control leg and foot cramps, that wake me during the night. Rarely occurs if I take the potassium. Also taking levothyroxin, and atorvastatin, along with some vitamins and suppleents. Swelling started in past week with NO change in medication, and NO injury. Age 85