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 vary, depending on the cause. 1  But some symptoms are common to all types of airway blockage. These include: 2  Agitation or fidgeting. 3  Bluish color to the skin (cyanosis) 4  Changes in consciousness. 5  Choking. 6  Confusion. 7  Difficulty breathing. 8  Gasping for air. 9  Panic. 10  Unconsciousness.