I kind of like that usage. Though I think either way it's one of those anomalies of English, isn't it?
"I feel poorly" works better (for me) than "I feel poor."
Did the team play bad or did the team play badly?
I'm trying to think of a similar example...is it only with "feel" as a verb that we like to drop the "-ly"?
I (truly) have a cold and am feeling and thinking poorly!
I want you to feel (...not feely) better soon :)