I have very low levels of IgG and was diagnosed with Common Variable Immune Disorder (CVID). I have been receiving IgG infusions for about 10 years now. For many years they worked very well and symptoms were greatly reduced. Unfortunately, for the past two years, my symptoms have increased. I do not have the most typical symptoms of chronic/frequent infections but rather less common digestive problem of daily episodes of vomiting and diarrhea. I would like to hear from others with CVID and learn from them what has helped and of course share what I have learned. My IgA is also low but I was told that it is of no concern as some people have no IgA.