Hi, I'm Dr. Peter. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Welcome and thanks for asking your question. My name is***** am a licensed veterinarian. I am sorry for the delay in response. If you would like to continue can you please answer a few questions so that I can be well informed and give you the best advice.
1- How much does he weigh?
2- How long since the last time he vomited?
3- Any pre existing medical conditions?
4- Is it fair to say he is drinking more than usual?
There may be a slight delay between your follow ups and my replies as I type out a thorough reply for you.