Doctor. I have problem in my knee from last some month's. I consulted many doctors but they are saying it's a normal thing regular cycling and swimming will help you and they gave me some medicines. They are saying the liquid something dried up. I get a crackling sound and I cannot climb on stair case properly not even able to run properly. I get swelling sort on my knees when I do exercises or walk for some time. What should I do am tensed about my knees. kindly help me with a solution.