I would like to know what is considered to be "rebound diarrhea"? I have been doing better with the Caltrate, but since I get so panicky when going out I usually end up taking Immodium or Lomotil even if I haven't had a problem that day "just in case." That may mean that I take something two or three days in a row and then I give it a rest for a couple days when I can stay home. On the days when I am home, I usually start out with a fairly "normal" bm, but it is usually always followed by diarrhea sometime later that day. Is this caused from the days of taking Immodium and Lomotil. I begin to think that the Caltrate isn't working well enough when I have one of these episodes. Maybe it just my system saying,"I have to go sometime?"