Instead of disclosing, I have found it effective to tell the boss something like, "I am going through a lot of crap with family right now, and I hope it is not too much trouble if I need a little more 'personal space' until everything blows over."
It was never a lie -- I am always "going through a lot of crap with family", and getting a little more personal space is my goal.
_________________
The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.