Your symptoms, especially the dizziness when standing, suggest dehydration from gastroenteritis (stomach flu). The most important step is immediate rehydration. Please start drinking Oral Rehydration Salts (ORS) solutions to replenish lost fluids and electrolytes, which will help resolve the dizziness. For the mild fever and stomach pain, you can safely take paracetamol. Adding a probiotic supplement can also help restore your gut health. Avoid taking anti-motility medications or antibiotics without a prescription. Because you are experiencing dizziness, please rest and consult a doctor soon for a proper evaluation to ensure you recover safely.

For a 7-month-old with loose motions, the most important step is preventing dehydration. Continue frequent breastfeeding or formula feeding. You can give Oral Rehydration Salts (ORS) in small, frequent sips after each loose stool. Paediatricians often recommend zinc supplements (like zinc sulfate drops) to help recovery, but consult your doctor for the correct dosage. Avoid giving any over-the-counter anti-diarrheal medicines. Most mild cases resolve quickly. However, please consult a paediatrician immediately if you notice warning signs such as extreme lethargy, sunken eyes, dry mouth, blood in the stool, a high fever, or if your baby cannot keep fluids down.