Just had my 3rd out of 5 infusion on Friday. Got so sick around 4 am. Fever,chills,threw up once. Nauseated. And the worst headache ever! I mean head pounding bad. Headache lasted all day but my temp is back to normal now. They ran it at 100 which was good for the first two days. Though it was a 3 days in a row back and forth drive of 12 hours not to mention the time for the infusions.I was drained bad by the 3rd day. Thing is the IVIG is working. I can feel my strength in my legs n arms. And I can stick my tongue out. Lol.my eyes weren't droopy today. So I know hydration is the key. Perhaps by the 3rd infusion I was dehydrated and it caused the horrible headache and nausea. I took ty. but it didn't help. Anyone else experience this?