What Causes Nausea or Vomiting? Nausea and vomiting are not diseases, but they are symptoms of many conditions such as: Motion sickness or seasickness; Early stages of pregnancy (nausea occurs in approximately 50%-90% of all pregnancies; vomiting in 25%-55%) Medication-induced vomiting; Intense pain; Emotional stress (such as fear) Gallbladder disease
Souring definition, having an acid taste, resembling that of vinegar, lemon juice, etc.; tart. See more.
Sour Odor. A sour body odor can have a variety of causes. A sour smell is associated with processes such as fermentation, and with dairy products. When food reaches the stomach, itâs broken down in a souring process with acid. As this breakdown occurs, a sour smell is released (which is often experienced in the form of sour belching).