It could be hearing or eye sight can you see any cloudiness in her eyes. My little Runner sometimes looks like she isn't sure where she is. You little female looks very heathly. I'd def keep her since you are aware she is a little slow compared to the others and maybe easy Pickens for a predator if taken where she isn't in secure property. I can also walk up to my Runner most of the time and pick her up. She is my avatar.