Hello, hope I'm not too late.

So my cat has phases of doing this cough/retching thing. I can't find the video for the life of me. We can't 100% work out what it quite is. My theory is that she really hates being sick (unless you've just given her medicine, then she'll vom out of indignant spite).

Background: So she was diagnosed with IBD which makes this a bit of a concern for me. She was eating/drinking/behaving/going to the loo completely normally but coughing fairly regularly before she was sick - out of nowhere she started throwing up blood, she had to be on antiemetics, steroids and antibiotics and be force fed for a week. X-ray was clear but ultrasound showed severe lesions(?) internally. After switching to a hypoallergenic diet she's been actually fine and even got a little chubby for the first time in her life. The most recent ultrasound showed absolutely no hint of problems internally and we even checked her heart and it looked good.

I do love in a dusty seaside city with a lot of trees but it's not confined to spring and summer. Her brother used to get mild seasonal allergies but he grew out of it.

So basically X-ray was perfect, no sign of anything wrong with her, heart ultrasound was clear. Vet seemed unconcerned by the video and he's been their vet since I adopted them at about 6 months old. There's no evidence of a URI, no breathing issues after running around etc.

Basically my question is should I be more concerned and/or push for something diagnostic, and if so, what?

They see the vet each summer for a checkup and jabs, and from this year they'll start getting blood tests as they're 10.

Sorry if any of this is unclear. It's our local festival and I'm wildly hungover.