There at least a couple of scenes when it seemed like Finn could be a force sensitive (e.g figuring out which star destroyer the resistance had to hit to disable the imperial fleet). Do you think he is a Force sensitive?
also, what the heck was that thing Finn wanted to tell Rey???
Yes, I think the implication is that he is at least mildly force sensitive, as there were a few times where he seemed to sense things before(or as) they happened.
I think he was going to tell Rey that he loved her.
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"I am tired of Earth. These people.
I am tired of being caught in the tangle of their lives."
After everything that's happened, frankly I can't really get behind Finn being Force Sensitive now. Too late imo. This should have been something right from the get go, not 3 movies and years later.