Let downs

HI Lori,
Speaking of let downs, Kevin recieved his first ivig monday, Tuesday morn., 6hrs after completion of mon. ivig, he was very sick until 3pm. I suspect aseptic meningitis as he fits the profile. Anyway, grip is majorly stronger. Well today, 8 days later, his grip is not as strong. He was playing basketball and football after school until 7:30 possibly overdoing it? Does this mean the ivig just gave him a little boost, and he is suffering from gbs resuduals, ( since ivig does not help gbs) or do you also see drops in stregnth after ivig? Is this what you are refering to when you say let downs? Thanks Dawn