That's the word! I kept thinking indegestion but knew it wasn't.

Switched him from having two meals a day to having four, that seems to have done the trick. :

She had kennel cough about a year ago and had a slight horse cough ever since then, more like she was occasionally sneezing.
This is like she is just about to be sick when you can hear her going through the motions of being sick, gulping, stomach going in and out then she will open her mouth as if she is being sick but there is nothing.
She didn't do it yesterday but was very restless in the evening so I am going to ring the vets just incase.

Thanks for advice

That does sound more like unproductive vomiting, if she is really heaving from deep in the gut. The kennel cough or some thing stuck in the throat is just that all from the throat and highe up and more like what I would call retching. Deffinately needs to be checked out, espcially if its gone on a few days. If he behaviour isnt right and she is still restless even though the trying to vomit may have ceased, there may well be discomfort or pain still.

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