No, not really. I think this is a misunderstanding that Fi is in itself emotion. I suppose if you're not F-dom (and the further you are from it), the more feeling will be experienced as emotional or the less able it is to be separated from the emotional experience. For INFP, heart vs head is Fi vs emotions. It's what I feel rationally to be RIGHT or IMPORTANT vs what emotional experience I am having. And with introverted judging, there is such a strong need for internal consistency, agreement in all the parts, and sound premises. This means a constant weighing and reweighing and shifting and sorting. I think daydreaming is so common to INFPs because this is very tiring, and daydreaming can become almost like writing stories that illustrate a meaning better than a direct "telling".
I suppose it looks like trust in a whole feeling, but the whole feeling has a book of reasoning to back it up, one which will never be published for the public eye. What we actually do, as confirmed by many other INFPs, is start with a feeling (and certainly there is information from emotions used), and then reason on why it is, how it is, what it means in relation to everything, else. And until it is "made sense" of, well, there's just an uneasiness. I guess that's what all the stuff in profiles is about INFPs seeking "inner peace" although I personally wouldn't describe inner peace as a goal of mine - I think harmony between feelings, the self, and reality is more of the idea.