This is a terrible problem for you. Did the GI who recommended Metamucil and suggested that you have IBS explain the dietary connections and refer you to a nutritionist? Have you had testing to rule out conditions like celiac? Have you had a colonoscopy? I had a similar problem with “the urges” and do have IBS. The low Fodmap diet is terrible but has mostly solved the bathroom emergencies. I can’t imagine all of that Metamucil.