My answer is yes and yes; as someone with a lifetime of GI maladies, I've come to know the meaning of years of torture in silence unaided by flippant or clueless doctors. In fact, it's possible the only reason I'm alive today is that some regular people demanded the science and practice finally advance on the 1980s lipid model that gave us all fat-free diets and type 2 diabetes. I've been through many things like this and I get the feeling it's more common than most would expect.