Reasons behind stomach ache. There are numerous reasons of abdominal discomfort, some of which are more severe than others. Another organ in your abdomen could be the source of what feels like a stomachache. Alternatively, it might originate from sources outside of your digestive system. If your stomach pain is severe, inexplicable, or persistent, you should always seek medical attention.
REASONS BEHIND STOMACH ACHE
Mild digestive problems like gas, indigestion, or a stomach infection are the most prevalent causes of stomach discomfort. Simple home treatments and rest are typically effective in relieving mild discomfort. Severe or ongoing discomfort, however, may be a sign of more significant underlying issues.
Tummy Trouble;

Everybody occasionally has some upset stomach symptoms. However, depending on your symptoms, you might need to visit your doctor on specific situation
Gastritis;
These are lessions that are visible on the lining of your small intestine or stomach. Although long term use of aspirin, ibuprofen, and other medications may contribute, bacteria is the most frequent cause. Additionally, these ulcers are more common in those who drink or smoke. Depending on the underlying reason, they are typically treated with prescription medications that reduce stomach acid or antibiotics.
Peptic Ulcer;

These are open sores on the upper portion of your small intestine or stomach lining. The most frequent cause is bacteria, but as previously mentioned, long term use of aspirin, ibuprofen, and other medications may also be involved. Furthermore, these ulcers are more common on those who smoke or drink. Depending on the underlying reason, they are typically treated with antibiotics or prescription medications that reduce stomach acid.
Stomach Virus;
This is an intestinal virus that is also referred to as the stomach flu. You might get nausea, cramping, or watery diarrhea. You might even pass out. It can spread by contaminated food or from someone who already has it. Although there is no cure, it usually fades away on its own. Consult a physician if you have a fever, are experiencing vomiting, are dehydrated, or notice blood in your stool or vomit.
Food Poisoning;

reasons behind stomach ache
This disease is caused by bacteria, viruses and parasites found in food. You might have nausea, vomiting and diarrhea. When food is not handled correctly, it occurs. Although diarrhea normally goes away on its own, you should visit a doctor if you’re severally dehydrated, notice blood on your stool or vomit, or if it persists for longer than three days. In addition, contact your physician if you have other medical conditions or a weakened immune system.
Irritable Bowel Syndrome;

reasons behind stomach ache
Your colon, commonly known as your large intestine, is affected by this common ailment. It may result in bloating, cramps, and mucous in your stools. You can alternate between constipation and diarrhea. Although the exact cause is unknown, food, stress, hormones, and infections may all be factors. Your doctor might be able to help you manage your symptoms with medication, dietary, or lifestyle modifications.
Summary
Any discomfort in the area between your ribs and pelvis is referred to as abdominal pain. Abdominal pain is frequently referred to as “stomach pain” or “stomachache.” However, organs other than your stomach may be the source of your abdominal pain.