Stomach heat refers to the presence of heat evil in the stomach, which is a heat syndrome. Symptoms include bad breath, easy burping, red lower lips, yellow tongue coating, dry stools, etc. In severe cases, you may also feel a burning sensation in your stomach.

Stomach cold means cold evil in the stomach, which is a cold syndrome. The symptoms include a light mouth, tasteless meals, white or blue lower lips, loose stools, bloating and stomach pain, and stomach discomfort or pain when encountering cool wind or cold weather. In severe cases, the stomach feels cold.