Hi. I have had knee pain and catching for the past few weeks. I am 60 years old, active go,for, (ie, walk 18 holes three or four days a week), weigh 138 pounds. This past two days, I have had edema around the inside of my right ankle and pitting edema along the shin and calf area of the leg. No leg pain, other than the knee when it catches, or sometimes at night I ll get a cramp in my calf.