Dizziness, headache, dizziness, vomiting. What's going on?

Dizziness, headache, nausea and vomiting may be caused by mental depression, excessive anxiety, etc. Secondly, dizziness, headache, nausea and vomiting may occur when a cold is caught, or when the body is tired or stressed. In addition, this phenomenon may also occur when inflammation such as otitis media and sinusitis occurs.