Heartburn might feel like a burning sensation in the upper stomach or acid rising into the chest or esophagus. It can indicate that stomach acid is hurting the esophagus.
Bloating and gas cause abdominal distention and a full tummy. Also, excessive belching and flatulence. It can be a sign of IBS, food sensitivity, or intestinal bacteria overgrowth.
Altered bowel function can be diarrhea (loose or frequent feces), constipation, or a feeling that BMs are "off," "strange," or unsatisfying.
Nausea and/or vomiting might be regular, as after every meal, or infrequent, every few months. Food poisoning, norovirus, and stomach illnesses can cause it.
It might be moderate, like streaks of blood on toilet paper while wiping, or severe, with significant amounts of bright red blood or black tarry stool,
Blood in the stool is commonly caused by constipation or hemorrhoids, but it might be a sign of a more serious problem like a tumor or ulcer.
Rosacea, eczema, and psoriasis are sometimes linked to gut health. Other rashes can indicate celiac or Crohn's disease.
Humans use antibiotics to cure diseases, and farm animals are given them, too. They can damage the gut microbiota and cause c. difficile.
Pains in the joints, which may be related to issues in the gastrointestinal tract such as inflammatory bowel disease
Loss of weight without trying, especially if it's more than five to ten pounds.