I hear ya, pud's. I was on Avonex and hated it for how it was making me feel. I think it may have helped too, but at what cost..
Maybe you could switch to Copaxone. I did and had no side effects, except that I keep on having exacerbations, so I stopped it too.
Good luck with your choice...Don't forget about LDN. A lot of Peeps on your side of the Pond are on it.