I had my left knee operated on for meniscus surgery on 4-11-2011. Doctor said 4-6 weeks recovery. I went to PT, and was still out for 11 weeks. I work in a 4 star hotel as a turndown attendant. I push a cart that weighs about 180 lbs. My knees are buckling, and my left knee is swollen. I am always in pain!! I find it very hard to do my job. I am going to see my regular Doctor this monday. See what he says. Am i always going to have this pain? I was better off before the surgery!! Now, pain in both knees!! Very severe! My sergon told me that in a few years in would need both knees replaced. Isnt that wonderful news? I am very worried i wont be able to do my job anymore!! I feel lost here.