我非柠檬和心酸我非洋葱何流泪
[wŏ fēi níng méng hé xīn suān wŏ fēi yáng cōng hé liú lèi]
'I'm Neither Lemon nor Onion, Why Am I in Tears?' This implies feeling unfairly emotional (usually in heartache) despite having no apparent reason for sadness or distress, akin to mysteriously tearing up without the usual triggers.