eat one's heart out
1.
tr. to suffer from sorrow or grief.
She has been eating her heart out over that jerk ever since he ran away with Tracy.Don't eat your heart out. You really didn't like him that much, did you?
2.
tr. to suffer from envy or jealousy. (Usually a command.)
Yeah, this one's all mine. Eat your heart out!Eat your heart out! I won it fair and square.
sweat bullets
tr. to suffer about something; to be anxious or nervous about something; to sweat blood.They were sweating bullets, waiting for the results.The kid sat in the waiting room, sweating bullets while the surgeons worked on his brother.
twist (slowly) in the wind
in. to suffer the agony of some punishment, such as hanging. (Figurative only.)I'll see you twist in the wind for trying to frustrate this investigation.The prosecutor was determined that Max would twist slowly in the wind for the crime.