Spooks (including the domestic FBI-type ones) definitely pick locks. They also have things like spray-on dust to hide the fact they've been in a place.
No one is picking your locks just to move things around or steal small, insignificant items. You are either suffering from a mental disorder or a trusted member of the household is gaslighting you (it’s not gaslighting though, you’re grasp of reality is slipping. Don’t call me for a pick proof lock, just get help please)
I have someone like this. Glad to hear it's common-ish. She's "getting help" but the doctors can't do much more than we can.