What Does Vomiting After Intake Of Dulcolax Indicate Prior To Colonoscopy?

I have a colonoscopy tomorrow morning. I took 2 Dulcolax, followed by the Miralax solution of 8.3 oz mixed with 64 oz of Gatorade. I threw up about 2 cups of the mixture. I'm having a few bouts of loose bowel movements, but not as many as I have had in the past. I take 2 additional Dulcolax in a few minutes. Is it a problem that I threw up?