半病半癫半痴呆
[bàn bìng bàn diān bàn chī dāi]
This roughly means 'half-sick, half-mad, half-foolish'. It portrays a state of disarray, mental and physical illness, or eccentricity. It can describe someone dealing with various issues—be it emotional imbalance, health conditions, or social peculiarities—and embraces the complexity of human vulnerability.