痛不欲生有多痛撕心裂肺有多疼
[tòng bù yù shēng yŏu duō tòng sī xīn liè fèi yŏu duō téng]
Expresses deep emotional pain which feels so painful it makes one not want to live. It refers to a level of hurt and agony that feels unbearable, similar phrases in English might include 'it's excruciating', 'it hurts beyond imagination'.