... docs are convinced that it's salt intake causing it. I have a pinched nerve in my low back too among other things, I've been taking Hydrodiuril for the swelling but maybe one of the drugs I take is causing it? My knee bulged before treatment, my right foot makes the shoes for the right foot feel tight or it won't go into the shoe at all. I put a pair of sandals on & my right foot busted the straps on the sandal because it was so swollen, I thought it was okay to try putting them on... guess not. Should I ask my doctor why there's nothing being done for my knee? I have Fibromyalgia so both knees hurt but the right one hurts more because it's sprained and strained.