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).
Photo Credit Goodshoot/Goodshoot/Getty Images. Constipation is classified as irregular or difficult bowel movements and can lead to a blocked colon due to impacted feces. Symptoms of constipation include discomfort in the lower abdomen, fatigue and inability to pass gas or stool.