What Is Savella Prescribed For?

Hello Dr., thankyou for your time and expertise. I hae been diagnosed with Chronic Fatigue Syndrome and 4 mnths later with s every Chemical senitivities along with non0Aids or other retro-virus related low CD -4 cells (have had a abone marrow and many other expensive ongoing blood test over a few years period. The number has fallen from 550 at first testing to 109 very many years later. My healthhas declined greatly even snince first diaganosese,but my present pain Dr. athe head of duke apin clinic in Nc, gives little attention to CD-4 cells or Chemical sensitivities and is contantly almost forcing me to try yet anti anti-depressant (savella) though I ve tried 14 others with very bad results over the tears. He threatens to stop prescribing properly taking morphine which controls my pain if I don t take a new $410.00 per month drug not even meant for CFS but is an anti-depresant (he agees I; m NOT depressed nor do I have fibromyalgia, the two things the drug is for. Should I go through further misery and take another drug that I react badly to and can t afford (my total income is $1315.00 per month and rent alone is $124.00 per month. or chance drugs that work being taken away? Stressed in Chapel Hill