Having loose motions with cysts in your stool strongly suggests a parasitic infection, such as amoebiasis. This requires specific prescription antiparasitic medication, commonly Metronidazole, which must be prescribed by a doctor. Please do not self-medicate. I highly recommend consulting a healthcare provider for a proper stool examination to confirm the exact parasite. In the meantime, focus on preventing dehydration. Drink plenty of fluids, especially Oral Rehydration Salts (ORS), coconut water, or clear broths. Eat a bland diet consisting of bananas, rice, applesauce, and toast, and avoid dairy, caffeine, and spicy foods until you are evaluated.