Have spent all night thinking of the worst case scenarios regarding the storm tomorrow and an issue going on in another part of the world!
Cue, googling a particular world leader and trying to predict what could happen, researching during the night and then accepting the worst case scenario.
I would laugh at my brain and ridiculous thought if it didn't follow by feeling so worn out and a headache.
It happens with simple things too though: someone doesn't reply to a text and I think they're annoyed / don't really like me. Someone wants a word and I think they're going to give me the worst news such as losing my job.
It's exhausting sometimes.