Ok so I just took my first dose of Rebif, and I really flushed and not feeling well at all. Surprised this is happening fast, my nurse told me to just lay down and call her in an hour or so and take an advil in the process. Anyone experienced this? I just feel so tired all of a sudden and like it's hard to focus on things.

Please help, I'm just nervous about all of this. I was just newly diagnosed with MS last week but symptoms has been lasting for months.