I am 74 years . Had bYpass in 2005 in USA. Do walking for 1 hr daily, weekly one hour swimming, occasional cycling. Suddenly I developed knee joint pain severely and my doc told it is bones worn out and game tablets. But since I developed some allergic indication, like ballooning effect in my tummy, he changed the tablet and I am perfect. Except for the knee pain and I am using Arlin oil for the same. I switched to Ayurvedic medications since 2 days, some tablets Oils for knee, and some powder etc .Now somewhat better and I have to go for review after 20 days. Just wanted to know what could be the reason .I have been advised to not use steps climbing, sitting on indian toilets, sitting for lunch etc. I have been having lunch only in witting on floor pose for so many years and suddenly due to this pain I find it difficult to do so. Shall be obliged for your opinion