If you dream of vomiting, your body may be signaling something your waking mind doesn't want to face — an illness that lingers longer than expected, or an association with a situation that becomes embarrassingly public.
Watching someone else vomit in a dream suggests that you're about to see through someone's act. People who have been performing goodwill toward you may reveal that their motives were never what they seemed, especially when they need something from you.
If you dream of a woman vomiting a chicken that scurries away, something she was looking forward to gets derailed by an unexpected health issue in her family. Disappointment follows, and circumstances around work or daily life feel off-balance for a while.
If what comes up is blood, illness may arrive suddenly and without warning. A heaviness settles in, and the people and comforts of home, rather than being a refuge, seem to add to the weight you're carrying.