Perhaps a 2nd opinion might be useful.

This is too scary to rely on an internet forum;

Have you checked with the shelter?

Sometimes shelters have vets who will check "post-adoption" pets.

I wish you & your puppy the best.

Thank you they actually discharged him today, his platelets went up from 80 to 137 and I can tell be is feeling a little better but still maybe half his energy norm and still has a slight temp of 103.0 we will not be following up there. I intend to get his records and seek another opinion. The animal hospital is next door to the shelter we got him from, we hoped they could correlate together. Hopefully he continues to improve, he usually a little ball of energy and it's rough knowing he doesn't feel good.

Was he vaccinated before being released to you? Look at this http://www.canine-health-concern.org.uk/PetVaccination.html

Also this one (Note that Weims are one of the breeds predisposed to having problems with this) http://www.dogs4dogs.com/JR_Articles/Breeds%20at%20Vaccine%20Risk.htm

Reactions can happen 7-45 days after vaccinations.