Stairs do I have too?

Last year I was starting to think I would have to sell my house as I was having issues going up the stairs. My knees did not like them at all. I kept thinking the usual things, If I exercise and lose weight it wont be a problem. On Saturday I was getting ready to go out to dinner at a friends I went up the stairs got to the top, stopped and thought “That ‘s odd” so I went back down, and right back up again, Guess what I had to do it one more time…..NO PAIN My knees do not hurt, the 14 stairs in my house are a piece of cake. I no longer feel I will have to sell the house I really love.