Would you please help describe the usual warning signs of a brain tumor?

See below: Most brain tumors present with a seizure or paralysis. Headache is also a common symptom and is often associated with increasing nausea and vomiting. If the symptoms are progressively getting worse over a month or two, then think of brain tumor as a possible cause. Go see a neurologist in that case..

No one answer: Brain tumors show up with many different signs or symptoms. Some people just have headache, others get confused, some have focal neurological signs such as weakness on one side of the body, or aphasia (problems with language and speaking). Some tumors show up by causing seizures. It all depends on where the tumor is, how big it is, and how fast it is enlarging.