Hello ! I can understand your situation . Such conditions could get really frustrating to handle ! I would like to ask you a few questions first , 1. Did you undergo a rehabilitation program after all your surgeries ? 2. Are you doing any sort of exercises currently ? 3. Are there any other symptoms like buckling of the knee etc ? 4. Has the doctor cleared you of damage to the operated structures ? Pain could come from overloading weak muscles , and thereby the internal structures and not always from some actual tissue damage . Swelling which has recently developed could suggest inflammation around the joint . A physio evaluation could help to know what conservative treatment options are available . Your physio could help you with reducing the inflammation , thereby reducing the pain , strengthen your muscles , build up proprioceptive function of the joint and thus prevent recurrence. Joint taping , electrical modalities and exercises are generally advocated. Without trying to give a diagnosis (since I haven t evaluated you ), I would always suggest that a well structured rehabilitation program , concentrating on muscle strength , range of motion of the joint , and thereafter exercises to build up the joint proprioception . Do get yourself evaluated by a physio as well . Tc.