My dog gave birth last november 1, but her puppies are still feeding on her(4 pups, 7weeks old), since then winter have been eating excessively, but after the pups feed on her, she throws up the rice(she is eating human food with rice and whatever it is that’s served on the table) it’s like she’s letting her pups eat what shes thrown up, Is this normal? Or should i bring her to the vet already?