Hi,
Probably child had viral fever. Loose stools may be due to that only
Now child is active. So no need to worty
Give light food like curd rice, Khichdi etc. Curd is good for stomach
Give plenty of water
Can give WHO ORS. dilute it according to instruction
Avoid junk food
Avoid fruit /fruit juice when there is loose stools
Next Steps
If your child has fever give Paracetamol according to weight
Health Tips
If both complaints persists needs to meet a nearby paediatrician