Can't speak for the other user, but we have had three West Highland Terriers/Westies. All three of them did this at times and could be super picky at times to the point of making them sick.

They have really strong internal clocks, and if their schedule gets out of whack, or if we're slightly late, or if something gets their appetite moving earlier than normal, this happens.

Their stomachs start producing acid whenever they think it's time for food, and if they don't get it in time, they throw up stomach acid.

We have it decently under control these days due to years of experience... but it takes 4 meal times and a small snack before bed. One or the other of our current two will still get sick once every few weeks.

I have actually had to dial back their portions carefully the past few weeks because they were both a bit overweight. So I can confirm that this can be a problem even when they are getting enough food.

That's surprising to me, I thought it was produced by Netflix

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Ahhh, i see they've reclaimed their property finally.