Think I’m crazy

I’ve been talking to this guy since last September. We click on every level. Like each other very much. Have a mutual respect for each other. I’ve been giddy about him for a while liking him a lot and all. Nothing bad has happened. No miscommunications, no rubbing me the wrong way with something, no suspicious stuff..nothing. But today, out of the blue, like almost immediately after I woke up, I felt absolutely nothing for him. Nothing. I looked at his pics. Nothing. Don’t even find him that attractive anymore. Usually things like this happens gradually over time when it comes to the fire burning out or having fading interests but yesterday I was still all about him. Last thing on my mind as I drifted off to sleep then BOOM! Nothing. My hormones are regular and typical. I’m 32 years old. No life changes or anything. I’ve been searching high and low rereading messages going over things with us and outside of us and cant find anything to explain this MAJOR SHIFT that has happened. I’m so stumped that I’m here asking for feedback that might be able to shed some light