I'm sorry to hear you're experiencing loose motions and vomiting after eating. These symptoms can be caused by infections, food poisoning, or other digestive issues and may lead to dehydration if not managed properly.

Here are some steps you can take:

• Stay Hydrated: Drink plenty of fluids like water, oral rehydration solutions (ORS), or clear soups to prevent dehydration.
• Eat Light: Stick to bland, easy-to-digest foods such as khichdi, plain rice, bananas, and yogurt. Avoid spicy, oily, or heavy meals.
• Rest: Give your body time to recover by resting adequately.
• Avoid Self-Medication: Over-the-counter medicines like loperamide (used to treat diarrhea) should only be taken under a doctor's guidance, especially if vomiting is present.

If symptoms persist for more than 24 hours, worsen, or if you notice signs of dehydration (such as dizziness, dry mouth, or reduced urine output), please consult a gastroenterologist promptly.

In case of severe symptoms or emergencies, do not hesitate to contact emergency services immediately.To narrow down potential causes, we will need some more information.Please tell me your age and gender.