His I have been having extreme weakness, occasional dizziness and intermittent low-grade fever. I had an episode where these symptoms were very bad and I fell and could not get up. Due to that fall, I exacerbated a back problem (spondylolisthesis) and have extreme back pain radiating down my right leg. I have an epidural injection scheduled next week and being followed by a neurosurgeon. My concern are the other symptoms of the extreme fatigue, weakness. I have a history of rheumatoid arthritis, follicular thyroid cancer with total thyroidectomy. Any thoughts appreciated. Patricia Porter (age 57)