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).
Symptoms of Intestinal obstruction depend on the cause of the blockage. 1  A few of the symptoms are: 2  Nausea and vomiting. 3  Inability to pass gas through rectum. 4  Abdominal bloating and gas. 5  Constipation. 6  Diarrhoea. 7  Pain and cramps in abdomen that feels like intense waves striking at intervals of five to fifteen minutes.