Hello. I am very worried about my father. He entered in my room about 3:25AM and informed me of swelling in his legs and ankles, with no feeling and no pain. I went down stairs to take a look at what he had been taking. I know that my Dad takes large doses of codeines (30gx6.Day) because he has three damaged disks in his back. But he has recently been prescribed what is called Naproxen, for a blood clotting in his knee. I decided to look up some of the side effects and I came across “swelling of knee and ankles”. It seemed rather accurate so I began to worry. I suggested that my dad called a doctor or an emergency line because I thought it would be some sort of clot. I do not know what to do, I need you to tell me from this what you think it is and if I should wake him up and contact an ambulance.