The symptoms of primary and metastatic brain cancers are similar. The following symptoms are the most common: 1. Headache 2. Weakness 3. Clumsiness 4. Difficulty walking 5. Seizures Brain Cancer Symptoms Other Signs and symptoms which are not so common regarding brain cancer are given below: 1. Altered mental status: Change in concentration, memory, attention, or alertness. 2. Nausea, vomiting 3. Abnormalities in vision 4. Difficulty with speech 5. Gradual changes in intellectual capacity or emotional response. In many people, the onset of these symptoms is very gradual and there is a high possibility that it might be missed by both the person with the brain tumor and the family. Occasionally, however, these symptoms appear more rapidly. In some instances, the person acts as if he or she is having a stroke. Skull Base Tumor Symptoms Skull base tumors may not produce symptoms unt...