Continuous, painless gas for 15 years despite a healthy diet could stem from Small Intestinal Bacterial Overgrowth (SIBO), undetected food intolerances (like lactose or fructose), or chronic aerophagia (swallowing air). A gut microbiome imbalance or insufficient digestive enzymes might also be the cause. For immediate relief, over-the-counter simethicone helps disperse gas bubbles, while digestive enzymes can aid food breakdown. However, because this is a long-standing issue, you should see a gastroenterologist. They can perform a hydrogen breath test to check for SIBO. If positive, a targeted prescription medication like Rifaximin can treat the root cause.

Nighttime gas is often caused by lying down too soon after eating, late dinners, or specific dinner foods. For quick relief, you can take an over-the-counter medication containing Simethicone (such as Gas-X) before bed to break up gas bubbles. If you also experience acidity or heartburn, an H2 blocker like Famotidine may help. To prevent this, try to eat dinner at least 2-3 hours before sleeping, avoid carbonated drinks and heavy, gassy foods at night, and take a short walk after eating. If the problem persists, please consult a healthcare professional for a personalised evaluation.

For immediate relief from gas and bloating, you can try over-the-counter Simethicone to help break down gas bubbles, or an antacid if you have associated acidity. Activated charcoal tablets can also help reduce gas. Drinking warm peppermint or ginger tea and taking a short walk can further ease discomfort. Please avoid carbonated drinks, dairy, and heavy meals for now. If your pain is severe, constant, or accompanied by fever, vomiting, or changes in stool, please consult a doctor for a proper evaluation.