I know none of you can diagnose or treat. You also know that if I'm asking here, I'm desperate for any bit of advice I can get.
Here's the history:
On Monday my 6 year old border collie Rascal started vomiting green foamy bile. He vomited around 5 times that day. I wasn't too concerned at that time.
Tuesday he stopped eating other than munching on grass in the backyard, which he promptly vomited. I even made his favorite, rice and chicken, and he turned away from it.
Wednesday (today) we took him to the vet. The initial thought was a blockage, so they did an x-ray. The x-ray is clean but they're sending it to a radiologist for a more thorough look. We'll find out what the radiologist thinks tomorrow morning. He was given fluids under his skin because he's a bit dehydrated. We go back to the vet tomorrow, if the x-rays are clean then the next step is a blood test, and antibiotics.
Now, those on this site that know me well may remember our dog Jasper, also a border collie. Jasper died 6 years ago. Jaspers symptoms were exactly the same as Rascal's are, except one difference, Rascal isn't drinking or eating, Jasper drank excessively but vomited up every bit of water he drank. Jasper had every test done that we could think of and 5 days after he first showed signs of illness, he was dead, we never got a diagnosis. I'm terrified that we're going to lose Rascal too.
Right now Rascal is sleeping, he has been since we got home from the vet, they gave him a light sedative at the clinic in order to do the x-ray. I made rice and chicken again, at the advice of the vet, and he won't even look at it. I even tried hand feeding and he just turns his head away.
So my question is this. What should the vet be looking for? What further tests should we be doing? I have very little faith in vets. This is a different vet than the one we took Jasper to, but still, I don't have a lot of faith. I've researched online and found tons of possibilities, but I need a second pair of eyes.
A bit of info: Rascal is an indoor dog, he hasn't been off our property (inside the house, or in the backyard) in months, it's been too cold to go for walks. His diet hasn't changed. He hasn't travelled anywhere. We don't use any poisons in the house or yard. As far as I know he didn't get into anything he shouldn't have.
I welcome any advice anyone can give.