I too stopped Rebif from horrendous side-effects...hardly any white blood cells left, constant infections, 4 relapses a year, flu-like reaction with every injection even after 5 years on it.
Switched to Copaxone and joy! 1 relapse about every 2 years, milder than before. Symptoms like spasticity actually improved (I think Rebif made them worse). I did get lipoatrophy but I suppose when I look at an MS friend of mine who can barely walk now and she's 5 years younger than me, I can just about put up with lipoatrophy. You may not get lipo, many don't. I don't get pain from the injections, I have never had a chest pain episode, and my MS seems quite stable, if you can say such a thing....
Edited to add: TT89 I am so sorry, didn't mean to hijack your post! I think you have done the right thing for you, coming off Copaxone. I wish I'd listened to my body quicker like you did, when I was on Rebif. Hope you find something else that suits you much better.