Hello
There is a possibility that you might have developed a sinus infection because of the recent infection which can cause you to have these headaches. Some degree of headaches and body aches are common following viral infection.
Next Steps
you should take steam inhalation regularly and use saline nasal drops to keep your sinuses clean. you should see a physician to get your BP and sinuses checked because sometimes you will require antibiotics. you can take simple painkillers like crocin 500 as an when required for headache.
Health Tips
dont take too much painkillers as they can damage you kidneys and cause ulcers.