Explain the symptoms

1.Nausea is an uneasiness of the stomach that often comes before vomiting. Vomiting is the forcible voluntary or involuntary emptying ("throwing up") of stomach contents through the mouth

2. Pain due to obstruction of the stomach or upper small intestine may be relieved temporarily by vomiting which reduces the distention that is caused by the obstruction. ... Other associated symptoms that accompany abdominal pain may suggest: Fever suggests inflammation or infection.

3. 

• The definition of Indigestion is an uncomfortable feeling of fullness, pain, or burning in your upper abdomen.
• Symptoms of indigestion include
  • abdominal pain,
  • heartburn or acid indigestion (acid reflux),
  • bloating,
  • gas,
  • nausea,
  • acidic taste in the mouth,
  • stomach discomfort,
  • constipation or diarrhea, and
  • decreased appetite.
• Indigestion has many causes including medical conditions, medications, diet, and lifestyle. Stress and anxiety often can make indigestion worse.
• Tests to diagnose indigestion include blood tests, abdominal ultrasound, endoscopy, colonoscopy, upper GI and small bowel X-ray series, CT scan or MRI of the abdomen, and a gastric emptying study.
• The first line of treatment for many cases of indigestion is
  • lifestyle changes including eating slower, eating smaller amounts,
  • avoiding alcohol and caffeine,
  • quitting smoking,
  • avoiding trigger foods, and
  • losing weight.