Used to emphasize the intensity of the hard work or effort put into a task.

Extreme Effort

It's a figurative term, not actually sweating blood, but feeling like the work is that exhausting.

Not Literal

Often used when someone has worked exceptionally hard to achieve a specific goal.

Highlights the severe level of stress or anxiety experienced during a situation.

Indicates a state where one is so worried that it feels physically taxing, almost painful.

Suggests that the person is awaiting a result or outcome which is out of their control.