Hello, The first thing to understand from your history is this is the early signs of OA knee. You should do regular exercise to improve your metabolism and also strengthen the muscles so enough knee joint space is maintained to avoid any pains to arise. A physiotherapist will be able to guide you with a good set of exercise which can help to reduce weight and also improve muscle strength. Please avoid any kind of running or gym as it may damage the knee more and lead to other complication like aggravating the OA knee. Hope you understand that your weight is more than the prescribed Scientific values. Also doing exercise has helped many people avoid knee replacement in early ages and sometimes permanent. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist