My son had fever and headache for 2 days now. he also feels dizzy?

Please c a doctor: Could be his sinuses or flu, more important is to make sure he doesn't have bacterial meningitis, he will be fine, goodluck

Assessed: Headache and fever in a 2 year old can have such broad diagnoses. Dizziness is an unusual complaint for a 2 year old. It may be a virus but have him examined to exclude other causes. All the best.