Shih Tzu vomiting

Hi everyone.  I have a Shih Tzu that is about 4.5 years old.  We just got him last Thanksgiving form friends.  He often vomits yellow foamy bile.  He doesn't eat well at all and sometimes when he vomits there is undigested food in it.  I was wondering if this is common and what are some suggestions to help him feel better.  Thanks everyone.

[ginger899]

Some dogs throw up more than others. Often, it's simple and to do with something they have eaten which has disagreed with them.
But a dog who vomits chronically, or frequently, needs to see a vet I think.
It may be a straightforward thing -such as he has been eating too much, or too much 'People food'. Or maybe his food needs changing.
But sometimes it can be a more serious issue going on, perhaps with pancreas or liver etc.
Get him checked out.

[Misfits4Me]

Hello & welcome.......I agree with Ginger, he needs to have a check up to rule medical issues out, first.....Then:

Does he do this any certain time of day? Morning? Night?
How often do you feed him? What time/times of day?

He may not be able to tolerate the food your feeding him.....What do you feed?

Thanks, Karla