Would a meningomia brain tumor cause you to get dizzy and break out in a sweat all of a sudden ?

Need more data: In general, a meningioma is a very slow growing tumor and this is unlikely to all of a sudden happen. Other issues can cause these symptoms (they are relatively non-specific). In theory, i can imaging a scenerio where a mengioma causes an endocrinopathy, and this happens, but that is a major stretch. I would have a very experienced internist evlaluate you and perhaps do some tests.