Thank you so much!

Also anti inflammatories did nothing I should add!

Thank you so much for taking the time to reply. It it usual for it to come on relatively unprovoked? Or could it be connected to the fall? Also, as it is deteriorating so quickly now, what is the likely time she can live with it?
The whistling is relatively constant now, with every day becoming more extreme.

We have an air purifier running constantly, I have never used harsh cleaning chemicals ever and we are in a small apartment, so her exposure to irritants is as low as I can make them.

She was on cerenia but it did nothing and nor did the steroids.

Thank you so much again.