Could he have gotten into something outside? Zander had a vomiting episode around the 3rd of Jan. it is very scary to see them sick like that. The vet gave him some antinausea meds, a shot of something. Went back home, that evening he was not throwing up anymore ... it had to come out some how so the dreaded D started. Back to the vets the next morning ... he diagnosed Z as having a bacterial thing in his tummy. So he was put on anitbiotics, I put him on a diet suggested on a thread, fish, mash potatoes, & pureed green beans, he was D free after that.
I am hoping for something simple for your baby. I look forward to hearing that all he need is a little antibiotic and he will be okidoky.
