Since 2010 I can't eat like I used to do. Every time I eat this amount of food I have to go to the bathroom. If I eat less I feel better, but I eat too little when I eat again I have to go too. All doctors I consulted says it is IBS but no diet or treatment or drugs done any effect. All I really know is that my digestion is too fast. Could may be that all doctors who I consulted have not ask some important test and so did not find the real illness. Or the treatments really do no make any effect in anyway?