sweat over

The sight of one of those little white pearls peeping out of the swollen gum brings a cold sweat over me now.

Tim hustled us backstage, where Lil and I used to sweat over the animatronics and cop surreptitious feels.

Sometimes I feel I've got to sweat over a poem that I need to get written.

Who'd ever sit on a stool and sweat over books in an office?

Can you conceive of a man's getting himself into a sweat over so diminutive a provocation?