Come to think of it, I have had something else that is quite possibly related..... For years now, after I eat some particularly oily things, I seem to almost exude it out of my skin. Especially the front of my nose....e.g. after eating a couple (or several...) well-buttered rolls, my nose feels greasy, buttery - not too long after, either. Same goes with peanut butter.
Kind of feel it in my fingers too, and there seems to be a bit of a smell of whatever on me also. Not sure that it's with any oils, those are the two I've really noticed.
Maybe I do have some digestion / absorption issues after all.