Forcibly expelling the stomach content from the oral route is known as Vomiting and before vomiting, a discomfort feeling comes from the stomach is known as Nausea.

Vomiting and Nausea are symptoms which occurs in many conditions such as

• Chemotherapy
• Gastroparesis (Muscle of stomach wall don't function properly, inhibiting digestion)
• General Anesthesia
• Intestinal obstruction
• Migraine
• Morning sickness
• Motion sickness: First aid
• Rotavirus
• Vestibular neuritis
• Viral gastroenteritis (stomach flu)
• Acute liver failure
• Alcohol use disorder
• Anaphylaxis (a severe allergic reaction)
• Anorexia nervosa
• Appendicitis
• Benign paroxysmal positional vertigo (BPPV)
• Brain tumor
• Bulimia nervosa
• Cholecystitis
• Crohn's disease (a type of inflammatory bowel disease)
• Cyclic vomiting syndrome
• Depression (major depressive disorder)
• Diabetic ketoacidosis
• Dizziness
• Ear infection (middle ear)
• Enlarged spleen (splenomegaly)
• Fever
• Food poisoning
• Gallstones
• Gastroesophageal reflux disease (GERD)
• Generalized anxiety disorder
• Heart attack
• Heart failure
• Hepatitis
• Hiatal hernia
• Hydrocephalus
• Hyperparathyroidism (overactive parathyroid)
• Hyperthyroidism (overactive thyroid)
• Hypoparathyroidism (underactive parathyroid)
• Intestinal ischemia
• Intestinal obstruction
• Intracranial hematoma
• Intussusception (in children)
• Irritable bowel syndrome
• Medications (including aspirin, nonsteroidal anti-inflammatories, oral contraceptives, digitalis, narcotics, and antibiotics)
• Meniere's disease
• Meningitis
• Milk allergy
• Pancreatic cancer
• Pancreatitis
• Peptic ulcer
• Pseudotumor cerebri
• Pyloric stenosis (in infants)
• Radiation therapy
• Severe pain
• Toxin ingestion

Treatment for Vomiting will rely upon the cause or symptoms you're experiencing, so your medical consultant will determine treatment options based on the cause.