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).
Signs and symptoms of a salivary gland disorder or blockage can include: 1  Swelling or redness in the cheeks, under the tongue, or under the chin. 2  Dry mouth (also called xerostomia) 3  Pain in the mouth.  Facial 1  pain. Mild to severe fever.  Bad taste in the 1  mouth. Pus in the 2  mouth. Discomfort when  eating.