Sometimes it happens. Not to everyone and usually when you don't expect it. In this case, medication not required. Sit down, take a load off and get ready for your explosion of shirts.
If you really need 24 shirts we can only wonder, what are you wearing right now? If you're on the fence, just remember you could put a hole in a shirt when you get off the fence so it's nice to have a spare or two... or twenty three.