What are the worst symptoms of brain cancer?

Seizures, stroke.: Probably the worst symptoms of any brain cancer are seizures, and a stroke-like onset. Seizures can be caused by stimulation of excitatory, or loss of inhibitory cortical circuits by the tumor. Stroke symptoms/onset can be due to hemorrhage into the tumor. Other symptoms include focal heurological deficit, like vision changes, headache from focal irritation of pain sensitive areas (lying down).

Too many to list: There are many symptoms of a brain tumor but i really dislike listing them---too many people have some of them due to far moer common causes--but believe they now have a brain tumor and panic. I believe that if your health is not right----for whatever signs or symptoms you have, you should see your primary care physician who is best capable of deciding what is the best path to follow.