Hello, I am afraid that the expert you have requested is not currently available. Still I am Dr. B, a licensed veterinarian and I would like to help you with your wee one today.
Now I am very concerned about your lad, as bloody vomit is very serious. Can you tell me:
Is he able to keep water down?
Are his gums pink or pale/white? Moist or sticky?
If you press on his belly, does he have any discomfort, tenderness, or tensing?
Could he have eaten something he should not have (ie bones
, toys, rocks, plants, chemicals, etc)?