Your gut does far more than just digest food—it plays a major role in everything from immunity to energy levels and even mood. So when something feels “off,” your body often sends warning signs long before a serious issue develops. According to Dr. Joseph Salhab, a board-certified gastroenterologist known as The Stomach Doc on TikTok, many people overlook these subtle (and not-so-subtle) symptoms, brushing them off as temporary discomfort or stress-related issues.
But persistent digestive changes shouldn’t be ignored. From trouble swallowing to unexplained weight loss, these red flags could signal deeper imbalances in your gut health—or even more serious underlying conditions. The good news? Once you recognize the signs, there are natural ways to support and restore your digestive system before things escalate.
Ahead, Dr. Salhab breaks down five key symptoms that may indicate your gut health is out of balance.
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1. Trouble Swallowing
“If you’re having trouble swallowing, that’s not normal,” says Dr. Salhab. Common causes include severe food allergies that can narrow the esophagus, scar tissue from repeated acid reflux, or even esophageal cancer, which he notes is “on the rise in the United States.”
2. Persistent Nausea or Vomiting
“You shouldn’t have to be dealing with nausea and vomiting every time you eat,” he emphasizes. Chronic symptoms may point to issues in your upper GI tract, or problems with organs like the gallbladder. Either way, persistent nausea isn’t something to brush off.
3. A Change in Bowel Habits
One of the most common gut health red flags? A persistent change in your stool patterns. “If you were going regularly and then all of a sudden you’ve been constipated or had diarrhea for a few months, and it doesn’t go away—that definitely needs to get checked out.”
4. Blood In Your Stool
Dr. Salhab is clear on this point: “Dark blood or bright red blood in your stool is never normal.” Blood can signal anything from hemorrhoids to colon cancer, so this symptom always warrants medical attention.
5. Unintentional Weight Loss
While dropping pounds might seem like a win, it’s not always a good sign. “If you’re not trying to lose weight and all of a sudden you’ve been getting skinnier, that’s not something that should be ignored,” he says. It could mean your body isn’t absorbing nutrients properly—or in rare cases, point to cancer.
