Pain In The Leg

I have been sitting wrong. I like to lean forward in my chair and place all my weight on my bent knees. I get this nasty thing on my right leg where I cant walk. I have to use a cane. Which for my age is scary. My wife keeps swearing to get me a walkers for seniors. And all I have to do is sit correctly. I better do that or else I am in trouble. And look what I did my leg is bent again. Grrr. Have a good day.