Some people also experience neck pain. As with headaches, however, seizures are not commonly caused by brain tumors. Often tumors cause partial seizures, in which one area of the brain is affected. In such cases, a person does not lose consciousness but may experience confusion, jerking movements, tingling, or odd mental and emotional events. Generalized seizures are caused by disturbances of nerve cells in diffuse areas of the brain and therefore have a more severe and widespread effect on the patient.
Gastrointestinal symptoms are also common and include nausea.
Nausea and vomiting often occur in children with brain tumors and in all people with brain stem cell tumors. Sometimes the only symptoms are changes in mental and other behaviors, including memory loss, impaired concentration, problems with speech and reasoning, and general confusion. People with brain tumors often sleep more than usual. Specific symptom syndromes may help identify the tumor. Symptoms of glioblastoma multiforme, which include headaches, seizures, memory loss, and changes in behavior, may develop rapidly and worsen quickly.