what are the first signs of brain cancer?
['Headaches, which may be severe and worsen with activity or in the early morning.', 'Seizures. People may experience different types of seizures. Certain drugs can help prevent or control them. ... ', 'Personality or memory changes.', 'Nausea or vomiting.', 'Fatigue.', 'Drowsiness.', 'Sleep problems.', 'Memory problems.']