Loose motions with stomach cramps, fever, and a feeling of vomiting are most commonly due to a stomach infection, often called gastroenteritis. This can occur from contaminated food or water and usually causes intestinal irritation, leading to frequent stools, weakness, and dehydration. Most cases are short-term and improve in a few days with proper care. For treatment, the main focus is to prevent dehydration and control symptoms. Doctors may suggest oral rehydration solution (ORS), anti-vomiting medicine, or other medicines only if needed after proper evaluation, so it is important not to take antibiotics or other drugs on your own. The exact treatment depends on the severity of your symptoms. You should drink plenty of fluids, such as ORS, coconut water, or clear soups, to stay hydrated. Eat light foods such as rice, curd, and bananas, and avoid oily or spicy meals. Take adequate rest and maintain hygiene to prevent the spread of infection. If you notice signs like persistent high fever, blood in stool, severe weakness, or symptoms lasting more than a few days, seek medical advice promptly for further care.