Well i'm not sure of the side effects related to rebif, but do know that other meds, avonex for example, do give u the same sort of issues. Try to pre-med with maybe tylenol and then maybe continue to be on that thru the period of time u expect to feel bad. I'm so sorry u must deal with this, but u'r so right...it's well worth it. Check out this link for the side effects u may experience.
http://www.themcfox.com/multiple-sclerosis/ms-drugs/rebif/rebif-flu-like-symptoms.htm
I am so glad you are finding support here, Peg! This is a great place for just that reason. It was really nice chatting with you on Monday. Keep posting???