So that my soul chooseth strangling; i.e. "so that I would prefer strangling to such horrid dreams," which are worse than any physical sufferings. Some see here a reference to suicide: but this is s very forced explanation.
Suicide, as already observed, seems never even to have occurred to the thoughts of Job (see the comment on Job 6:8). And death rather than my life; literally, rather than my bones. Death, that is, would be preferable to such a life as he leads, which is that of a living skeleton.