I spent all morning on a Quaker parrot message board and learned a lot. I wish I had found the board years ago. The people on there have been so nice and supportive! He was not any worse than he was last night so I was trying to learn what I could and keeping my eye on him. Around noon we decided to go ahead and take him to the avian vet that was recommended last night at the animal hospital we took him to.
This vet was so good with Paco! She took a stool sample and ran blood tests. The results showed everything was within normal limits except for his muscle enzymes. The normal range of numbers is between 100-300. Paco's was over 2700. This means that he's under some muscle trauma and since he hasn't been injured it may be his heart. We left him overnight in an incubator of sorts. Even though his white count was in normal range, she was going to inject an antibiotic. She will call in the morning and I'll go get him.
We don't know what is going to happen. If it is his heart there is nothing they can do. So... we wait.