Cidney is 12 years old and it seems the older he gets this problem is getting to be more frequent. Out of the blue, he will act like he is being punished, tail down and really mopy. He will start to vomit clear liquid and sometimes it will have grass mixed in with it. His tummy will sound like an alien is inside rumbling around and he will have the most offensive gas ever for a little 7 lb dog. I think he is in pain sometimes and these eposides will last about 30 min to an hour. I am so reluctant to take him to my vet because all she seems to want to do is prescribe antibotics for everything. Any one know where I can find some further information on these types of symtoms?