I was on Copaxone and stopped taking it and i have started taking Rebif 2 weeks ago and i feel like i have been hit by a truck!! I have the worst joint pain i think i have ever experienced in my life as well as abdominal cramps and just feel overall shitty!! Does this last long?? Does it get better?? I hope i dont sound like too much of a sulk but god does my body hurt!! Any feedback would muchly appreciated!!