I am no longer on Avonex but the first night I also had shivers during the night. I didn't have the sweats though. I guess I was lucky because of the medication I was taking I never had many effects except for being so exhausted during the day. Sorry you are just beginning your treatment my friend but even more sorry that both of us have this terrible disease. Good luck to you.
Chuck the old man :>)
AMWTP Training Instructor
Idaho Falls, Idaho
Diagnosed with PPMS May, 2006
but still working at the present.
Tried just about everything there is for MS, including Tysabri
Waiting to start Cytoxin Treatments soon.