in reply to @slkanowitz Yes. And to quote my immunologist, "this is an assault" on your body, and "transient muscle weakness" is one of the biggest side effects of the IVIG, which "may or may not wear off over time." To that end, I am going to try one more month of the treatment, and then I will make a decision whether or not to continue. I am too active of a person, and laying around most of the time has been difficult at best for me. This is the kind of stuff that doctors/pharmaceutical companies do not tell patients. I suppose I had to experience "it" in order to understand perhaps I do not want this "life saving" treatment.