Swelling
Tumor
The moon has gotten awfully heavy due to swelling. You're not sure what's caused the moon's swelling, but you hope it's just allergies and not a tumor or something.
しゅ
は
None
When people see the moon's swelling, they yell: "Hah (は)! Serves you right!" It turns out a lot of people think the moon is kind of a pompous jerk, smugly lording over everyone from the heavens, so they're happy to see it looking all swollen and uncomfortable