Extremely low blood pressure can develop in seconds (as with bleeding from trauma), in minutes (as with a peanut allergy), or over the course of hours (as with a worsening infection, such as toxic shock syndrome).
The symptoms of a bowel obstruction are. 1  Feeling bloated and full. 2  Pain (usually colicky tummy pain). 3  Feeling sick. 4  Vomiting large amounts (including undigested food or bowel fluid).
With a narrowed or blocked passage, digested food may not be able to pass through. Symptoms may include crampy abdominal pain (or stomach pain), vomiting, or bloating. A bowel obstruction is one of the most serious complications of this disease. In some cases, bowel obstructions require surgery (see Crohn's Disease Surgery).