Question

to go through the mill - She really went through the mill for a time when her husband left her, but she's feeling much better now.  - We've been going through the mill a bit since we moved here. The climate is cold and the people are not very friendly.  - Luckily for my brothers and I, we grew up in a sporting family and had a father who had been through the mill before us and knew how to prepare us.  - She is going through the mill at the minute and needs lots of prayer to get through the next few months.

Accepted Answer

to experience a difficult or unpleasant situation You would not feel very happy if you were ground like corn between two millstones! You can also put someone through the mill.

Idiom	to go through the mill
Definition	to experience a difficult or unpleasant situation
Examples	- She really went through the mill for a time when her husband left her, but she's feeling much better now. - We've been going through the mill a bit since we moved here. The climate is cold and the people are not very friendly. - Luckily for my brothers and I, we grew up in a sporting family and had a father who had been through the mill before us and knew how to prepare us. - She is going through the mill at the minute and needs lots of prayer to get through the next few months.
Note	You would not feel very happy if you were ground like corn between two millstones! You can also put someone through the mill.

Mill Experience Difficult Unpleasant Situation Time Husband Left