What are symptoms of brain cancer?

Depends on location. Importantly, realize that brain tumor does not equate brain cancer. Depending size and location of the brain cancer, various symptoms can occur. A large tumor usually creates headache, nausea or vomiting. Depending on location, it can cause many symptoms including; weakness, visual or sensory changes, aphasia (loss of speech) or seizures.
Occupies brain area. Because a brain tumor grows & occupies increasingly more space, symptoms persist & worsen depending on the area of the brain affected.They may include unrelenting/worsening headache, nausea/vomiting, seizures, loss of consciousness, change in gait, weakness of the face/arm/leg, change in speech, double vision, confusion, change in personality.Any persisting/worsening symptoms should be evaluated by a doc.
Brain tumors in. Children are most common in the posterior fossa (cerebellum), and cause pressure leding to vomiting and head ache. Kids can also become clummsy, and sometimes bang their heads in pain. If old enough to walk, may stop walking, stagger, limp, nd change handedness, or neglect one side. Fortunately, children brain tumors are more curable than adults.