Weird. I've never had a problem with Robitussin or any of its kin. Taste is a funny thing. (OTOH, don't try to make me swallow GU -- either I won't get it down or I won't keep it down!)

It's okay to be temporarily selfish. My sympathies. I've got a nasty cold now too. Sore throat, no voice, cough, sneezing, stuffed sinuses, overall blah-ness, etc., and it aaaaall happened today! All at once! Ick. Must go sleep now...