No you are not alone - I think this happens to most people, but they don't feel it necessary to comment, or maybe they are worried about what others will think. A sure way to escalate the 'strangeness' of a word is to repeat it about thirty times - 'towel' is a fine example. Lenny Bruce who confronted language and social no-go areas as a matter of course used to do the same thing with the 'f' word in his stage show, just to make a point that words can lose their meaning, and their damage potential, if you approach them from another angle.