My endocrinologist put me on Naltrexone because I was so sensitive to the other meds for Hashimotos (Hypothyroidism). It helped me greatly for about 3 months and also helped with my fibromyalgia pain. Then I started having peripheral neuropathy symptoms in my arms and legs and more migraines. My primary took me off of it since I am migraine prone and that was a side effect listed for Naltrexone, along with peripheral neuropathy as a side effect. I will have to also add, my B12 was low which can cause the peripheral neuropathy symptoms. I started B12 injections and quit the Naltrexone and the peripheral neuropathy symptoms went away. With that said, my symptoms may have been from low B12 & the Naltrexone both. I am 'ultra' senstive to medications. This may be a good fit for you. I would just recommend looking out for the 2 side effects I mentioned. I wish you the best. God Bless.