I am Dr. Atul Kumar Nimawat, MS (ENT). Headaches can have various causes, but patients with sinus headaches typically present with the following features: • Deep, dull, throbbing pain in the forehead, cheeks, or around the eyes • Pain that worsens on bending forward or lying down • Facial tenderness or swelling • Nasal congestion or purulent nasal discharge (yellow or green in color) • Postnasal drip • Fever, particularly if an infection is present • Sometimes, a reduced sense of smell If you are experiencing similar symptoms, it may be indicative of a sinus-related headache. Diagnosis is confirmed through clinical evaluation and investigations such as nasal endoscopy, X-ray of the paranasal sinuses (PNS), or non-contrast CT scan of the PNS (NCCT PNS).

please get done CT scan of nose and para nasal sinus

You need to consult an ENT practitioner and get nasal endoscopy and a NCCT nose and pns.