I saw the PA last weekwho told me I need to have both knees done. I’m so dreading this. I’ve had both hips replaced but have heard they are a piece of cake compared to knees. I am quite heavy though (247) so may not agree to do the surgery until I’ve lost weight. Has anyone else faced this? What exercises can I do that won’t be too excrutiating? Does anyone have advice on specific diets they tried?