Hello everyone. Can you please tell me if mothers who are breastfeedin…

Hello everyone. Can you please tell me if mothers who are breastfeeding can have their teeth treated? Is it possible? I have my teeth falling out at an insane speed. If they were beautiful and straight before, now they're in cavities and there are none in some places. They hurt and fall out. I don't know what to do. Vitamins don't help. I've been lying crying for 4 teeth already in 9 months.