I am 77 years old. Have had MS since 1990. Been on Avonex since 2000. Recently my neurologist said he felt my MS had burned itself out and I could quit the Avonex. I stopped for two months and developed terrible headaches, stinging and burning all over my body and significant neuropathy in many places. I have gone on the Avenel and see my neuro next week. I dont want to go off the med. What do you think? Tks