I would say that if that is the case, she must be in early stages, as she responded to the call and is not staggering, or anything. It sure does look like she has something going on, though.
She's definitely in tough shape. Her respiration rate seems higher than normal too. Sounds like CWD is found in a good chunk of the Colorado herd so definitely possible. If it's not CWD I would guess some type of parasite.