Diagnosed with Mastocytosis in 2007. I've probably had it most of my adult life but did not know it. Have suffered with IBS and GERD on and off my adult life. Now I know it is likely secondary to the Mastocytosis. My family health history includes various cancers, osteo-arthritis, rheumatoid-arthritis, fibromyalgia, high blood-pressure and high-cholesterol. So far all I have is the rare disease that no one has even heard off, let alone know how to treat.