Hi Beth;
I understand your vet saying "what have we got to lose". Make no mistake, a Blasto diagnosis is dire, and I'm sure she's doing the best she knows how.
All of us *esp. Wilson3* have experimented and juggled things around before our dogs started getting better. I even have a doctor friend who now believes that his dog died of it as well, and he can't believe that Dirtbike lived.
The vets will get upset because others are telling you their own theories, you're calling them, you're questioning their judgment, etc. It's really a matter of doing the best you can with what you've got. Wilson3 also used alternative treatments and carried him up and down stairs. I treated DB like I would've treated a human. Gunner stood her ground and finally had to change vets, but she still has her dog.
Last year at this time, Wilson3 and I were watching people show up here one day, and telling us they lost their pets the next. Now that seems to be the exception. You're doing a great job. No one knows your dog better than you, so go with your gut.
jen