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A sensitive stomach or functional dyspepsia is the most common explanation for persistent fullness and affects about ten to fifteen percent of adults. It thus belongs to the most common gastrointestinal complaints at all, even if many of those affected do not receive a clear diagnosis for a long time. With it, the stomach and duodenum appear healthy on examination but do not work as they should. So no visible damage is found, and yet real complaints arise. Possible mechanisms are a disturbed stretching of the stomach, a delayed gastric emptying and oversensitive stomach nerves that perceive even a normal stretching as unpleasant. Experts also call this oversensitivity a visceral hypersensitivity, an increased sensitivity of the internal organs. Typical are an early feeling of satiety, fullness after eating and pressure or burning in the upper abdomen. Some of those affected additionally report nausea, frequent belching or a bloated feeling that tenses the belly further. Stress and emotional strain also play a role, because the stomach and gut are closely connected with the nervous system. This connection is often called the gut-brain axis and explains why tension can directly affect the stomach. A sensitive stomach is not dangerous but can be very burdensome and often runs in phases. Some people have hardly any complaints for weeks, then they appear more strongly again, often in stressful times or after a heavy meal. This makes the complaints hard to predict for many. The diagnosis is a diagnosis of exclusion, that is, it is made when other causes have been ruled out and the symptom picture fits. There are clearly defined criteria for this that are based on the typical complaints.
A sensitive stomach and irritable bowel syndrome often occur together. Both belong to the functional gastrointestinal disorders, in which the function is disturbed without a visible damage being present. About a third of people with a sensitive stomach also meet the criteria of an irritable bowel, which mainly affects the gut and goes along with abdominal pain, bloating and diarrhoea or constipation. With the irritable bowel too, an oversensitive perception and stress play an important role. If the fullness in the upper abdomen is in the foreground, this points more to a sensitive stomach, if abdominal pain with changed bowel movements is in the foreground, more to the irritable bowel. Often both pictures mix, and the transitions are fluid, so that a clear separation is not always possible. For the treatment it helps to find out which complaints are the most burdensome. A symptom diary, in which you note what you eat and when the complaints appear, can provide valuable clues here. This way individual foods that repeatedly trigger complaints can also be identified.
Sometimes an organic cause is behind the fullness, that is a detectable disease. Especially when the complaints are new, strongly pronounced or accompanied by other symptoms, this should be considered. A gastritis, that is an inflammation of the stomach lining, is one of them and often arises through the bacterium Helicobacter pylori or through painkillers such as anti-inflammatory medicines. Typical here is a fullness that appears shortly after eating and can be accompanied by nausea. A stomach or duodenal ulcer can also trigger pressure and fullness immediately after eating, often together with pain in the upper abdomen. Such ulcers often arise in connection with Helicobacter pylori or certain painkillers. With the reflux disease, heartburn and acid belching are added, often intensified when lying down or after eating. Problems with the bile, for example gallstones or a backflow of bile into the stomach, can irritate the stomach lining and trigger a feeling of pressure in the right upper abdomen, often intensified after fatty food. More rarely an inflammation of the pancreas or food intolerances such as a lactose or fructose intolerance play a role, which can often be detected with breath tests. Unlike with a sensitive stomach, with these organic causes a concrete finding can be detected and treated specifically, for example a gastritis through a therapy against Helicobacter pylori. That is why it is important to rule out organic causes first with persistent complaints. Only then can the fullness be classified with a clear conscience as functional, for example as a sensitive stomach.
The overview below shows typical causes of fullness and orders them by functional and organic. It does not replace a diagnosis but helps you to classify your complaints better and to prepare the conversation at the practice.
| Possible cause | Type | Typical accompanying signs |
|---|---|---|
| Ate too much, too fatty, too fast | Harmless | One-off, passes on its own |
| Sensitive stomach (functional dyspepsia) | Functional | Early satiety, pressure, burning in the upper abdomen |
| Irritable bowel syndrome | Functional | Abdominal pain, bloating, changed stool |
| Gastritis, ulcer, reflux | Organic | Pain, heartburn, nausea after eating |
| Bile, pancreas, intolerance | Organic | Upper abdominal pain, nausea, stool change |
Have these warning signs assessed by a doctor
Have fullness assessed by a doctor promptly if it lasts longer than two weeks, keeps recurring or is accompanied by warning signs. These include unintended weight loss, persistent vomiting, vomiting of blood or black, tarry stool, blood in the stool, difficulty swallowing, strong or nightly pain as well as a first appearance beyond the age of 45. A pronounced paleness or weakness can also be a sign of an anaemia through a bleed. These signs speak against a simple sensitive stomach and should be examined, usually with ultrasound and a gastroscopy.
With acute fullness, simple measures often help. A short walk stimulates digestion and helps gases to escape. Intense physical strain directly after eating, on the other hand, is rather unfavourable, a leisurely walk is better. Even ten to fifteen minutes of movement can make a noticeable difference. Loosening tight clothing on the belly and sitting upright briefly can ease the pressure. Lying down flat, on the other hand, is often unfavourable, because it can favour heartburn and belching. Warmth on the belly, for example a hot water bottle, relaxes the muscles, and a herbal tea with fennel, anise or caraway has a calming and anti-bloating effect. Herbs containing bitter substances are also traditionally used to stimulate digestion. It is important to interrupt the meal and not to add even more. A few calm breaths can additionally help when tension is involved. As prevention, smaller portions, slow and conscious eating, avoiding very fatty or heavy meals in the evening and a conscious handling of stress help. Regular meals at fixed times and thorough chewing also relieve the stomach. Those who eat late and heavily in the evening get fullness more often than someone who has the main meal earlier and lighter.
Whether acid blockers for heartburn, herbal remedies for a sensitive stomach or medications against bile complaints: brite helps you manage your remedies, be reminded of the intake and keep possible interactions in view. This way you have all remedies and complaints at hand at the appointment.
The bottom line: fullness is mostly harmless and a normal reaction to too much or too fatty food. It is a signal of the body that in most cases simply invites more mindfulness while eating. But if it appears regularly, already after small portions or together with other complaints, a look at the cause is worthwhile. The most important question is whether the complaints are functional, as with a sensitive stomach, or whether an organic cause such as a gastritis or a bile problem is behind it. This classification succeeds best together with the medical practice. With simple measures, acute fullness can be eased well, and with warning signs a medical examination provides clarity and targeted help. Those who know their triggers and adjust their eating behaviour can contribute a lot to making the fullness less frequent and everyday life more carefree again. Patience pays off, because functional complaints often only improve after a few weeks.
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This article is for general information and does not replace medical advice, diagnosis or treatment. With fullness with weight loss, vomiting of blood, black stool or strong pain, please seek medical help promptly.
