I have had 12 rounds of IVIG-the first month (4 rounds) I was a bit depressed and had bad headaches. I also had the chills most of the time.
the second month (4 rounds) I was doing better but still had the chills, was very depressed at the end of the treatment.
This last round, I was more depressed/angry because of IV access difficulty but still had the chills bad. No real fever with any of the chills. I think of the side effects meaning that the medication is working. Maybe that would help with you...
deb