Thanks for writing in.
Persisting headache definitely needs evaluation. I would advise you to visit your doctor at the earliest.
Any history of hypertension/ diabetes
. Alterations in blood sugars and blood pressure could cause headache. Neurological disorders can cause persistent headaches
. Other possibilities are stress/ anxiety
I hope I have answered your question. Please do get back to me if you have further queries.
Dr. Divya Kuttikrishnan