This rings a bell. I know a lovely, kind, honest, devout, and generous Church Lady about my age (fifty-something) who once dropped into the course of an otherwise mundane conversation about kids and husbands and housekeeping the information that "while I was at the store yesterday, the Holy Spirit reminded me that I was out of green beans, so I got some..." and then she rolled right on with whatever it was we were talking about. I have always remembered the matter-of-fact way she referred to the Holy Spirit as though it were merely a friend who was standing next to her and reminded her, "You're out of green beans", the way your kids, tagging along to the grocery store, sometimes remind you that you're out of milk.
So, not everyone who thinks that God talks to them is schizophrenic.