Headache on one side of head may be migraine. Any recent stressors need to be assessed. Migraine headaches are often assoc with symptoms like nausea, vomiting, blurred vision, colored halos etc. If these headaches become frequent consult a physician.
Next Steps
BP to be checked. If frequency of headaches increases or vision or swallowing problems arise, get an MRI brain done.
Health Tips
Chocolate, coffee, late nights to be avoided . Adopt healthy eating habits.