Hi I was diagnosed May 11, 2008, I was 35 at the time. I started taking Avonex July 14, 2008 and was very fortunate not to have side effects except 4 or 5 times, which were chills. I take tylenol before each injection. About 2 months ago I started getting numb around my mid back on my left side and it kept spreading around to the front and down ... more