Nausea and vomiting are symptoms of many different conditions, such as infection, food poisoning, motion sickness, blocked intestine, concussion or brain injury, appendicitis, and migraines. Persistent nausea and vomiting can be indicative of more serious illness; drug reactions or interactions.

Symptom severities
Severe 66
Moderate 154
Mild 300
None 1,072
Last updated: