It could be considered a fact that you can be experiencing some emotion. Our scientific ability to read brain's inner functioning isn't quite there to measure

It could be considered a fact that you can be experiencing some emotion. Our scientific ability to read brain's inner functioning isn't quite there to measure it objectively, but I find that plausible. Measuring changes in your heart rate, face flushing, breathing and on are definitely objective facts. More to the point, our potential ability one day to objectively say "this person is experiencing loneliness" doesn't strengthen the importance of the feeling, so whether they're "facts" or not isn't really relevant. I'd try this instead: Feelings are just feelings, and don't have to be anything more than that. Observe them in yourself, but choose what you do about them.