“dry” form shows up gradually as loss of appetite, decreased activity or hiding/sleeping, slow weight loss, fever, and neurologic signs including sudden blindness or seizures and is found more often in adult cats. Cats can also have a combination of both forms.“dry” form shows up gradually as loss of appetite, decreased activity or hiding/sleeping, slow weight loss, fever, and neurologic signs including sudden blindness or seizures and is found more often in adult cats. Cats can also have a combination of both forms.