how do you guys feel about mucinex? i'm getting a bad cold (ugh) and i have so much mucus in my throat but it's thick and i'm not able to cough it up, and i know that i should probably take mucinex for feel better but i'm sort of afraid of it...i don't like the idea of coughing stuff up..i'm afraid it's gonna cause me to v*...has anyone ever taken it? is it scary? or should i just take it?