The child has loose stools for 5 days. For the first 3 days, there was…

The child has loose stools for 5 days. For the first 3 days, there was diarrhea 8 times (completely absorbed into diapers and only small pieces of undigested food). The other 4 days, 4-5 times a day loose yellow stool, sometimes green, sometimes slightly with foam, sometimes with mucus. The child feels normal, active, temperature is 37, sometimes rises. I give Simethicone, but it seems like enough, they drink at most 30 ml of diluted powder. Give rice/wheat/oatmeal porridge, light chicken soups/with meatballs. What should I do? Call a doctor?