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).
See your doctor if more-frequent bowel movements are also accompanied by any of the following signs or symptoms: Changes in the consistency, volume or appearance of your bowel movements, such as repeatedly passing narrow, ribbon-like stools or loose, watery stools. Abdominal pain.