When Moonflowers bottle up (a) certain Emotion(s) for too long, said Emotion(s) will manifest into an acid that infects them with MESS (Moonflower Emotional Suppression Syndrome). The associated ailments depend on whatever Emotion(s) the infected Moonflower had been concealing, and the severity of said symptoms depends on the amount of acid in the infected Moonflower's body (which might increase until the bottled-up feelings are released).

Feistiness/Anger: Burning fever, rapid heartbeat, shortness of breath

Wackiness: Muscle soreness/weakness (feeling either stiff or as though the muscles had been pulled like taffy)

Joy: Fatigue, rapid heartbeat, faintness

Fear: Fatigue, rapid heartbeat, cold sweats, fast breathing, tremors

Glamour/Confidence: Stomachaches

Sadness: Dry cough, chest pain (or sore throat), difficulty breathing

Inspiration: Headaches (that might turn into throbbing migraines), blurred vision

Love: Coughing with bile and petals (the type depending on the Moonplume), eyes feeling as though tears have turned into ground-up glass, potential loss of vision

Jealousy: Nausea

Embarrassment/Shame (requested by Allyzuki ): Fever, sweating, headaches, stomachaches, nausea (possibly), gradually turning invisible