Hi, Based on the information provided, it is unlikely that minor headaches are caused by brain tumors. Headaches are a common symptom of many conditions, including migraines, tension headaches, and sinus problems. However, if headaches are new, change, or become more frequent, it is recommended to visit a doctor to rule out serious problems. While brain tumors can cause headaches, they are usually accompanied by other symptoms, such as nausea and vomiting, difficulty walking, changes in personality or mood, and weakness or numbness on one side of the body. In addition, brain tumors that cause headaches are usually large enough to press on nerves or blood vessels. It is important to seek medical advice if headaches are accompanied by new, severe symptoms or worsening frequency or intensity. Imaging tests such as an MRI may be recommended by a neurologist to determine the underlying cause of the headaches. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician