Joint pain

Any tips on how to ease joint pain. I was told i had patella tracking disorder years and years ago nd my hips and knees and feet have been vetting more and more painful now its to the point where even layng down in bed and relaxing hurts it kept me up the entire night last night and pain continued through today and worsend because of my job im a cna so im on my feet all the time... Any tips on how to help the pain go away or even lessen a little.