Have you had your thyroid checked.
My brother use to black out a few times a day, he would stop, and stare for about 2 seconds, before catching himself midair, and trying not to get dizzy. The doctor said that was because he needed more salt, so hes currently putting more salt on his food, and its helping actually alot. So simple, huh? The hearing loss could be something that just happens, I think thats happen to me a few times before too. A twitch and shake? Everyone gets cold chills, I know people who have them really bad, and theres nothing to do about that. People say that means there ghost around you, ha, but theres no cure for something like that. IF your ALWAYS dizzy and your heart is racing fast, that could be high blood pressure. Check these out and maybe they'll help? I tried(: Best of luck!