Definition of worry (oneself) sick
- He worried himself sick before the exam.
: choke, strangle
: to harass by tearing, biting, or snapping especially at the throat
: to shake or pull at with the teeth
: mental distress or agitation resulting from concern usually for something impending or anticipated : anxiety
: an instance or occurrence of such distress or agitation
: a cause of worry : trouble, difficulty
: a person's self : one's own self
: one's normal, healthy, or sane condition or self
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