retch

To make or experience an unsuccessful effort to vomit; to strain or spasm, as if to vomit; to gag or nearly vomit.

Here he grew inarticulate with retching.

To vomit; to make or experience a successful effort to vomit.

[…] in a couple of hours they were seized with violent retching; the contents of their stomachs were mixed with blood, mucus, and froth.

[…] severe, with a heavy retching; the contents of the stomach would come up rather easily at first, but as it continued the retching became more severe. By the straining to vomit, all the symptoms were […]

An unsuccessful effort to vomit.

To reck.