My DSH cat Ollie, 6 years old started vomiting and having trouble eating on Wed 3/1/23, same thing Thurs. threw up everything he ate. I gave him watered down fancy feast broth via syringe that evening. I took him to the ER vet Thurs night. The ER vet did body XRays and found nothing abnormal. Gave him fluids. She thought it might be related to his teeth removal in Aug 2022. She gave him pain meds and nausea medicine. There’s been no more vomiting.

Followed up with his veterinarian practice Friday morning 3/3/2023. She did a very thorough mouth exam. Did not believe related to dental work. His blood work came back normal. Was not reactive to firm pressure anywhere near mouth. She agreed to continue pain and nausea meds but no other info. Given antibiotic shot. He was fed watered down meat baby food on Friday and more water via syringe.

Saturday 3/4/2023 went back to his vet practice to see another vet. She did additional bloodwork and ruled out pancreatic issues. She did same exam and noted his was not reactive to pressure/touch anywhere except back of mouth/throat area. Told to stop pain meds. Given steroid shot to see if his throat/back of mouth is inflamed. Said should notice a difference Monday if this is effective. Has follow up with this vet on Tuesday morning. He started hills science prescription a/d food today via syringe and continuing water mixed with a little baby food for extra hydration/nourishment. She said if this doesn’t help he will need to seek an internal specialist.
Please help. Thoughts ?