I have two baby girls from my accidental litter that have patchy fur on both sides of their neck. It makes me think they may be itching too hard or too much. I'm not sure if that's it though. I haven't checked them all yet so I only know of these two that have it. The boys from the same litter don't have any of this patchy fur. And I thought maybe they could be double rex but 1 - I thought that you get those from breeding rex and rex and this litter is not from rex and rex and 2 - I didn't think that double rex could molt(?) into it... So I guess my question is what is this patchiness?