I took 3 dulcolax tuesday & i went and everything was fine but since then i have not gone to the bathroom again... what's wrong??

For what purpose?: If you're looking for powerful laxatives, i assume you feel very constipated or are looking to "cleanse." if the latter, please reconsider. If constipation or stool variability is new or has significantly worsened, or is accompanied by distension, vomiting, fever, pain, or bleeding, then don't self-medicate but get checked. Don't use laxatives for weight loss please.