hypovolemic shock. You may be bleeding a lot inside your body, where you can’t see it, or outside your body, where you can see an obvious injury. You can also get hypovolemic shock from burns, pancreatitis, or from too much sweating, throwing up or diarrhea. Types of bleeding that lead to hypovolemic shock include bleeding from: A traumatic injury. Surgery. Ectopic pregnancy. An aneurysm that has burst. Gastrointestinal problems, such as an ulcer.