How Should Knees, Calf And Ankle Swelling Be Treated?

I have lifted weights all my life, now 73, my knees are swollen. My one calf is swollen plus the ankle. I had my uric acid checked and it was normal but on the high side. What can I do other than diet, which a diet leaves me without much to eat because most foods are bad for your uric acid.

Thank You ............Dick