The body, head, neck, back, etc. turns a pasty pale color. The top of the head begins to flatten. Dehydration quickly becomes apparent. Upper respiratory infection. Sneezing with mucoid exudates.
Lethargy becomes apparent.
Constant begging for food. The eyes pertrude and are almost always closed. They will not survive and will suffer throughout the course of the disease until, mercifully, death occurs. Personally, I do not see any other alternative. I cannot bare to see and hear them suffering so.