My dog is a Curly Coated Retriever and is 7 years old. He has been throwing up all day. Most of the throw up has had some yellow in it, but other then that it was clear. He has been acting very sluggish and both his ears are really red, but don't seem infected. He won't eat anything not even his favorite treats, and he is drinking water like a fish, but keeps throwing it back up. Someone help me!

Did he get into the garbage or some food he wasn't supposed to? Does he go outside by himself unattended?

The yellow is there stomach bile, which means he has nothing in his stomach. Red ears can indicate a few things, mainly alergic reactions. I would sugest you take your dog to the vet, as he seems he has gotten into something he should not have.

Ditto on the trip to the vet, There could be a number of things going on with your dog from "Garbage Gut" to a blockage. I think it is in his best interest to get medical attention.

Its been 24 hours since your post. What did the vet say?