Hi, I Am A 66-year-old Woman With An Unswollen Achy

Hi,
I am a 66-year-old woman with an unswollen achy ankle which has been a little bother for a few days, I don't remember twisting it or falling recently. My past history is cerebellar astrocytoma, non-Hodgkin's lymphoma, scoliosis, osteoporosis, fructose intolerance, arthritis, What treatment options do I have?
Thanks so much for your help Helen