胃
=
月
+
田
:
Willy Walrus (w) set up a mooncake (月) field (田) in the Eiffel Tower's bathroom (ei4). This led to him eating way too much cake, and now his stomach (胃) hurts. To relief the pain he uses a hot water bottle (mnemonic symbol for 胃).
illness / CL:場|场[chang2] / disease / to fall ill / defect
病
=
丙
+
疒
:
In engine's bathroom Brunhilde is proudly inspecting her bronze medal. She got it in a contest about having the craziest sickness by painting a colorful rash on her face.