My Dad IS 85 IN HOSPITAL FOR EXTREME FATIGUE, DIZZINESS,

My Dad IS 85 IN HOSPITAL FOR EXTREME FATIGUE, DIZZINESS, CAN BARELY WALK IMBALANCED, FIRST er SAID HE HAD uti--WRONG DIAGNOSIS.. WHEN READMITTED TO HOSPITAL IT WAS DTERMINEG HE HAD A VIRUS...HE IS STILL IN HOSPITAL AND hIGH bLOOD COUNT IS ELEVATED AND DIZZINESS WORSE.
tHEY HAVE DONE NUMEROUS CAT SCANS, MRI, DRAWN BLOOD EKG ETC. THEY CAN'T FIGURE OUT WHAT IS WRONG. HE IS REALLY SICK AND NOT GETTING BETTER