According to your sign and symptom you are suffering from some infection like fever and headache
As you know that best treatment depend on the correct diagnosis and correct diagnosis depend on the complete history of the patient so please take consultation from a doctor and give complete history of the patient so that correct diagnosis will be make and then best treatment will be start
Next Steps
Take Tab Paracitamol 500 mg 2 time per day for fever and pain
Take any good Multivitamin to get strength and immunity.
If again fever and headache come then take consultation before taking any medicine.
Health Tips
Please follow good life style as take plenty of fluid and take less spicy and fatty food and keep positive attitude to fight any problem of your life.