Hi, I live on the Gold Coast in Australia and have been trying for over a year to find out why I am expereincing a lot of numbness and tingling in my feet ,legs, arms,and hands. This happens just when I rest my hand on my leg for only a few minutes as an example. I have been on IVIG for 2 years and have not had an major episode in those 2 years and it has helped alot.But this numbness is affecting me a lot ,sleeping is an issue because my limbs go numb and it makes it very hard to sleep, has anyone any suggestions.Cheers Katarina