Think about it, you are a non-cigarette smoker, do you know all of the chemicals in a smoke? Try over 550 different, toxic chemicals. Carbon Monoxide, Tar, Nicotine, Fiberglass, etc...That is why you felt like shit. You are a non-smoker so your body isn't used to inhaling all of that nastiness, that's why the headache, the dizzyness, maybe even a sick feeling. Very common feelings for a non-smoker who decides to smoke.