Annie- I Think you are right on there! I'm sure they hate that it takes sooo long for me to infuse! It's strange that sometimes my veins feel sore from IVIG, sometimes i get mild fever and Headache, and other times i sware I just got saline, i don't have any ill effects..

I get achy in my neck and chest immediately if the rate is too high.. sometimes even at 100.. I'm so thankful it works, so I dont' want to complain.. but it would be more convenient for it to not take so long