Persistent headaches can have many possible causes — some are minor, while others may be more serious, including the possibility of a brain tumor. That said, most persistent headaches are not caused by brain tumors.
Headache Symptoms More Suggestive of a Brain Tumor
Headaches worse in the morning, or that wake you up at night
Nausea or vomiting, especially with no stomach illness
Worsening over weeks/months
Accompanied by seizures, confusion, or vision/hearing changes
One-sided weakness, tingling, or trouble speaking
Unresponsive to usual headache medication