Hi My Husband Has Been N The Hospital Since Tuesday

Hi my husband has been n the hospital since Tuesday 10/18/2016. He went in with severe head and back pain. He was incoherent and couldn't walk. They have ran multiple tests. CAT Scan, MRI, chest xray, echo cardiogram, spinal Tap, ultra sound of his arms, and lab tests. The only thing coming back are his CK levels are high. He is now at 677. He head ache is gone, his fever is gone, his back pain is gone and he can walk again, but he still does not have a lot of function in his hands. They have also had neurology consults and they still have no idea what is going in. Do you have any suggestions?