We've been so stressed out since learning about the GAMMAGARD shortage. GAMMAGARD is the medication used to treat Common Variable Immunodeficiency, of which Gavin has. Basically, GAMMAGARD is donor antibodies from thousands of people and is used to replace Gavin's broken immune system. There is a nationwide shortage of GAMMAGARD and that presents huge problems for Gavin. Without treatment, Gavin doesn't have a functioning immune system and for those wondering, that's not a good thing. We had our emergency appointment with his immunologist this morning and everything went smoothly. Without going into great detail because I'm just not in the mood to do so, I'll sum things up. The manufacturer of GAMMAGARD says its on back order. From what we've heard, it sounds as though this is a manufactured shortage…