Someone vomiting in a dream is symbolic of being mentally, physically, or spiritually poisoned by an environment or an ungodly influence. Eating vomit is symbolic of repeating bad behavior, Prov. 26:11... Christian Dream Symbols
A dream that features vomiting reflects a need to reject and expel harmful emotions or ideas.
The body possesses a natural reflex for getting rid of something harmful that has entered the digestive system. This regulatory impulse senses the presence of toxins or poisons and triggers a muscular contraction to expel the unwanted material. While vomiting can be caused by different stimuli, from tainted food to a viral infection to self-inducement, the symbolic meaning is the same: getting rid of something that is perceived to be bad. Because of the connection between vomit and food, this image will always have something to do with nurturance and self-care.
If it shows up in a dream, there is something amiss in how you are being nurtured.
vomiting without an unpleasant odour, taste and colur is a glad tiding that the person will cease to commit sins and that he will resort to sincere repentance. But if has an unpleasant odour, taste or colour, he will commit an evil act which will prove to be detrimental to him.... Islamic Dream Interpretation
If you dream of vomiting then you are purging negativity, guilt, shame and undesirable energy or programming. You are also releasing resistance to creativity, love and abundance that you desire. This dream could be a message to you find a healthy way to express and communicate your true feelings. See Venting Dreams.... Strangest Dream Explanations
To dream that you are taking part in the Holy Communion, warns you that you will resign your independent opinions to gain some frivolous desire.
If you dream that there is neither bread nor wine for the supper, you will find that you have suffered your ideas to be proselytized in vain, as you are no nearer your goal.
If you are refused the right of communion and feel worthy, there is hope for your obtaining some prominent position which has appeared extremely doubtful, as your opponents are popular and powerful.
If you feel unworthy, you will meet with much discomfort.
To dream that you are in a body of Baptists who are taking communion, denotes that you will find that your friends are growing uncongenial, and you will look to strangers for harmony. ... Ten Thousand Dream Interpretation
Seeing yourself vomit in a dream is a sign that you want to eliminate some aspect of your life that you cannot bear. It definitely deals with the feelings that upset you: a situation or alien behavior. In some cases, vomiting expresses that you are not pleased with yourself. Something from your life or from your attitudes repulse you such that you are unable to continue forward. You should do an internal cleaning.
According to ancient texts, this dream announces that the poor will gain benefits from the losses of the rich.... The Big Dictionary of Dreams
This religious ritual featured in a dream predicts sad, but not griev- ous, news, unless the ser- vice was out of doors, in which case the omen is reversed and the news will be joyous.... The Complete Guide to Interpreting Your Dreams