I am a new member and want to thank you for reading this. I have a 6 mos old Lamancha wether. He started holding his neck arched and had a fever of 105.I took him to the vets of course they couldnt find anything, well that got better now he cant use either hind leg. He pulls them away when I squeeze them but cant stand up. He has been down for 3 weeks tho his appetite and attitude are great. My vet has run a CBC and profile tested for CAE , Cryptococcus and done full body xrays with no back or neck issues. He is not painful any where and no sign of trauma.I am at a loss any ideas?