Hi Lisa,

It’s hard to say what might be the cause as vomiting as it is such a non-specific sign, but to answer one of your questions, this is not normal. Is she truly vomiting (digested food) or is it regurgitation (undigested food brought up right after eating)? It’s also challenging to know without knowing why she was on the antibiotics. I would get in touch with your veterinarian as the initial condition may not be resolved or could have manifested differently.

Best of luck.

Dr. Ryan Llera