"Just feelings. People don't think they're the feeling they have, a lot of the time...so it's definitely just that," she continues, before slowly looking back at Herbert.

Something seems a bit worrisome. "...I don't know, I don't know most of the words for all of the feelings."

It's Quite Specific, but it's also a bit like a thermometer that simply has 'hot', 'cold', and 'lukewarm' written on it, evidently.