Anyway- i thought I can give my little piece of knowledge when it comes to your Dog either having a Stomachache (which I thought) or a large ball in his stomach.
My dog is a Black Lab/Boardie Collie mix (see pic below), and is 75lbs. It started on a friday when he Threw up for the first time. I went my marry way and cleaned it up and praised him for not doing it on a carpet. The next day, 2 more vomits. The following 3 more. The 4 more days after that he was averaging 3-4 vomits aday. This is when I started to worry and thought he had a stomach virus. So- after research and twitter friends advice- I gave him pepto bismal, benedryl, fed him rice, and wet food. All of those are great things if your dog has a stomach ached. However, mine did not and threw up everything that was going in his mouth.
10days later I took him to the vet (dont be like me and wait), the vet did his thing and thought that he had Rip Worms so gave me medicine for it. 3 days later, the same results occurred but even more frightening - he threw up 7 times on that Thursday. He kept me up all night as i might have mentioned this a little in my last blog. But yes- 2 weeks of very little sleep taking care of my buddy.
First thing Friday morning, I took him into the vet and said- nothing is working, I desparately need you to find out whats wrong. After weighing him again, he lost 15lbs in 2 weeks. The doctor then said lets do an xray. I think he waited so long with this for 2 reasons. Most people try to avoid an xray due to the Fee, and when he felt his stomach 4 days ago- he didnt feel anything in there.
So- right before the X-Ray, i told him how much I need somehting to pop up on there or else we really have no idea whats wrong with him and he strongly agreed with me witch was a little scary. Anyway- this is what the X-Ray Showed.
Yes- thats a Flipping Hard Baseball. I dont even own a Baseball! 2 weeks in his stomach. Im pretty impressed with him to be honest. The fact that he swallowed it is impressive, and the fact that he kept pushing through for 2 weeks. Anyway- I hope this helps if you came across this on your google search of whether your dog has a stomachache or something else.