question: My brother has problems with his head. He says it is not dizziness but his head fills strange and he gets a sick feeling and has to lie down. He comes and goes, sometimes for a couple weeks before it occurs again. He has had every test thinkable done and they have not found anything and what to keep calling it dizziness . He tries to tell them that is not what it is...just a strange feeling he cannot explain exactly how it feels. Any ideas?