On some level I am still having a hard time being able to integrate the idea of only two feelings: pleasure and pain.
The usual cognition of the word "pleasure" and which has been with me most of my life until encountering Epicurean philosophy, seems like it has almost an eternal "prolepsis" of being bodily sensation and a kind of movement/active state, (and pain being a sensation that is more than just a mild discomfort). In my mind this leaves out the state of "feeling satisfied" (and therefore not needing anything to be different than it is).
Feeling satisfied is pleasurable, but not in the same sense as eating chocolate or having an orgasm.