Hello & welcome, I am Dr. B, a licensed veterinarian and I would like to help you today. I do apologize that your question was not answered before. Different experts come online at various times; I just came online, read about your wee one’s situation, and wanted to help.
How long has he had these signs?
Any gagging, retching, lip licking, drooling or vomiting?
Any changes in his breathing or wa he seeming sore when he ate?
Can he keep water down?
Are his gums pink or pale/white? Moist or sticky?
If you press on his belly, any discomfort, tenderness, or tensing?
Could he have eaten something he should not have (ie bones, toys, plants, chemicals, etc)?