Yes, the IVSM can cause a fever. When I was on it
in July, I had a fever from it - about 100, like you, the red flushed face and neck, hoarse voice, racing heart, shakes, muscle aches, etc. (and I wasn't sick or on the way to getting sick).
I called my neuro with my symptoms and she actually made me stop the infusion. This is the 2nd time that I had to stop taking the IVSM. They say that I'm hypersensitive to it for some reason.