I'm not sick - quick rant

So I've chalked this up to me just being irritated but there is this guy at work that will ask me severa times a day "how are you feeling". I'm about to slap him he's asks it like I'm dying. I think he's just trying to be nice but it drives me crazy and I've started responding will smart ass remarks like no different then the first time you've asked me...or Patrick I'm not broken, stop asking me that and he responds with well at least I'm consistant. I need to not let it bother me but it just annoys me for some reason!