1Some common symptoms of a brain tumor include

Headache
A headache is one of the most common symptoms of a brain tumor. It can be caused by the tumor pressing on nearby tissues, or from increased pressure in the brain as a result of the tumor. A headache or migraine can also be a sign of bleeding in or around the brain.
Most people with a brain tumor will experience some type of headache. The severity and frequency of headaches can vary from person to person. Some people may only have occasional headaches, while others may have them daily.