Hello everyone, girls, do your kids have such problems with fizzy drinks…

Hello everyone, girls, do your kids have such problems with fizzy drinks on their teeth? How did the teeth start? We don't sleep at night, we can't burp, and during the day completely calm baby, everything checked except for parasites and ultrasound of the abdominal cavity, we don't eat dairy, we have an allergy, we're exclusively breastfeeding, pediatricians say it's on the teeth, (already 4 months suffering) there are two lower teeth and they protrude, two upper ones) Can you tell me anything, I already drove myself crazy ??‍♀️