The baby is 12 months and 1 month old. For the past few days, the appetite has been poor, only drinking milk. Last night, while sleeping during the day, the baby kept waking up and crying. The body temperature was around 37.8°C. There was no fever yesterday, and the appetite improved, but there was a layer of red rash on the belly at night. However, the baby did not cry or fuss, and had a good deep sleep. In the morning, after waking up to drink some milk and playing for a while, the baby fell asleep again. There is a slight feeling of anorexia. Is this situation normal?