I sat around for two years doing very little. I was previously active by walking. Arthritis in both knees. Pain ok, tolerable. After sitting at a desk for years I found i had severe hip joint area pain when walking over 25 ft. Lower back hurts a lot now from sitting so much difficult oh standing to cook now hurting in upper body. Note: diagnosed with fibromyalgia years ago but antidepressants worked on the pain. Had discontinued antidepressanta now because they make me sit around all the time. What should I do?