He is just vomiting yellow fluid and it looks like his stomach is sinking in he isn't play like he usually do he's just laying around
I'm sorry to hear that your puppy isn't feeling well. Vomiting yellow fluid often indicates that your dog is bringing up bile, which can happen when the stomach is empty. Given that your puppy is also experiencing a loss of appetite, behavioral changes, and itching, there are a few things to consider.
The yellow vomiting could be due to an empty stomach, but it might also be related to other issues like gastrointestinal upset, parasites, or even a reaction to something he might have ingested. The fact that he is lethargic and not playing as usual is concerning.
Here are a few steps you can take at home:
First, ensure your puppy stays hydrated by offering small amounts of water frequently. Dehydration can be a risk with vomiting. Next, try offering small, bland meals like boiled chicken and rice, as this can be easier on his stomach. Additionally, keep a close eye on his behavior and any additional symptoms. Note if the vomiting continues or if he starts to show other signs like diarrhea or further lethargy. Lastly, make sure he has a comfortable, quiet place to rest.
Given that he is very young and showing multiple symptoms, it would be wise to have him checked by a veterinarian as soon as possible. Puppies can become dehydrated and weak very quickly, and it's important to rule out any serious conditions.
If you have any further questions, please feel free to ask. Thank you.