Sacrament sick refers to the feeling of intense nausea or vomiting, which is often associated with the taking of sacrament during religious services. However, there are several synonyms for this term that can be used to describe similar sensations. Some of the commonly used alternatives to sacrament sick include stomach upset, queasiness, nausea, and vomiting. Other phrases that can be used to describe similar feelings include motion sickness, seasickness, pregnancy sickness, and food poisoning. It is essential to communicate effectively with medical professionals when experiencing any of these symptoms to ensure a proper diagnosis and treatment plan.