I Had Chemo A Year Ago And B4 I Finished

I had chemo a year ago and b4 I finished I started experiencing pain in my legs and back then into my hips hands feet so bad I can't stand it. I've been to doctors and had a biopsy done on my leg cause the doctor said it would show neropathy one doctor says it is and my biopsy said its not neropathy. So y am I in so much pain on a scale 1 to 10 my is beyound a 10