Our first fever? We didn't sleep properly all night, the baby was cryi…

Our first fever? We didn't sleep properly all night, the baby was crying in his sleep, he was fussy, the temperature rose to 38, in the morning we called an ambulance because it was the first time we had this, but the temperature was already 37, they said not to lower it to 38.5, we listened, looked at the throat, everything is good) Could it be teeth then? Saliva flowed like a river yesterday and has been biting for three days now with a sore nipple and pulling hard. Well, how sad, such a sad little one, crying, doesn't let me go from him? And why can't moms take all their kids'