Hi river, i have every sympathy for you, i recently started with IBS(d) but i have had gall stones noe for almost 4 years, i have episodes of (d) due to the gall stones, i also get the intense pain in the right shoulder, shoulder blade, arm and right upper abdo, i get the pain going into the chest also. i have the indegestion, i think i have shares in antacids hehehe, i had a scan and it showed the stones then my gp decided it was helicobacter pylori, been treated for that but occassionaly i still suffer with the stones. So in answer to your question yes gall stones can cause (d). Hope that helps