Dear Sir, Kindly note that, I am 47 yrs old man. Past 4 yrs suffering from RA+. All other test relative to RA factor is negative except RA factor test. Now-a-days I am find very difficult to walk fast and finding difficult to claiming staircase especially in railway stations. Both knee always paining very badly. It is connected with RA facotr problem or knee problem. My second question is without taking any tablet, after taking 7 hrs nice sleep, from morning to evening I am always feeling sleepy. Kindly sugest and advise.