👉 Nausea, also known as nausea, is a common sensation that occurs when the body senses an overwhelming or potentially harmful substance. Nausea can be caused by a variety of factors such as food poisoning, dehydration, certain medications, or changes in stomach acid levels. The symptoms of nausea can vary depending on the cause and severity of the condition. Common signs include nausea, vomiting, headache, abdominal pain, diarrhea, constipation, and sometimes other gastrointestinal symptoms like stomach cramps, bloating