What's wrong with my dog?
I have 4 year old German Shepherd named Tank. Yesterday I let him outside and he went to the bathroom, then started to heav, for a good 5 minutes, finally he was able to throw up. He then ran with the dogs next door, so I didn't think anything of it, but, the rest of the day he was very lethargic, wouldn't eat or drink any water, I tried to give him a treat and he didn't want that either. Then this morning I woke up early to him attempting to throw up again, but this time he couldn't. He still has not ate anything or drank any water and now I am worried about dehydration since it is 8+ degrees in my house. Any idea what could be wrong? Should I take him to the vet? Any suggestions on how to cure an upset stomach if that's what he has? I plan on trying to feed him pumpkin, along with boiled chicken and rice... any other suggestions?