Headache Detective

1
When I get a headache, I run through all the known possible causes.
Andrea: “I slept fine, but was I drinking enough water? What did I eat? Where did I go?”
2
Like some day I’m going to crack the code.
Andrea: “I’ve got it! Sunny day + driving + pickles = headache!”
3
I guess there are worse hobbies.
Andrea: “Back to the drawing board”