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).
However, if you have at least two of the following symptoms for at least three of the past six months, then you probably have constipation: 1  Hard or dry stools. 2  Fewer than three bowel movements per week. 3  Straining excessively during bowel movements.  Having a feeling of incomplete evacuation after a bowel 1  movement. Having a feeling of rectal blockage.