What Causes Tiredness And Aching After Taking Domperidone?

Hi, may I answer your health queries right now ? Please type your query here...im taking domperidone for the first time for reflux/indigestion (consultant thinks my stomach is emptying slowly) but after just half a one i feel tired achy and not good-is that ok ?i took it 12 hours ago and none since do pehaps it is not the drug after all.