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).
Eventually the contents start backing up.â. Here are the most common bowel obstruction symptoms: 1  Distended (swollen or bloated) abdomen. 2  Nausea. 3  Vomiting â color and texture of vomit may help diagnose the obstruction. 4  Change in bowel habits. 5  Constipation. 6  Very thin stools. 7  Blood in the stool, especially likely if cancer is a cause.
In some cases, bowel cancer can stop digestive waste passing through the bowel. This is known as a bowel obstruction. Symptoms of a bowel obstruction can include: 1  severe abdominal pain, which may initially come and go. 2  not being able to pass stools when you go to the toilet. 3  noticeable swelling or bloating of the tummy.