While gas can cause localized chest, back, or abdominal discomfort, widespread body pain is usually unrelated to gas and warrants a medical evaluation. For immediate relief of gas and bloating, you can try over-the-counter medications like Simethicone (to break up gas bubbles) or an antacid if you also experience acidity. To help prevent gas, avoid carbonated drinks and chew your food slowly. However, because 'gas' rarely causes generalized body aches, please consult a doctor if your widespread pain persists, or if you experience severe chest pain, shortness of breath, or fever to rule out other conditions.