Pain Water
Pain water is when you cry not because you're sad, but because you're either super into something or you’re remembering something so bad it feels like you're reliving hell.
My teacher cried when she saw her students fail. She said it was pain water because she was mad and heartbroken.
My dad cried when he remembered his first heartbreak. He called it pain water because it felt like he was back in high school.
My sister cried when her pet bird died. She said it was pain water, not tears.