Not necessarily.
Generally speaking, there are no specific manifestations of early gastric cancer. As it continues to develop, gastric cancer may present with serious manifestations such as upper abdominal pain, anorexia, black stools, weight loss or even vomiting of blood. When the cancer grows in the gastric outlet location (pylorus), it causes an obstructive situation accompanied by nausea and dry heaving or even vomiting. Also, there are many diseases that cause nausea and dry vomiting, such as digestive tract diseases, nasopharyngeal diseases, oral diseases, etc. Stomach cancer is just one of them.