[Key2Yorkies]

I am having a terrible problem with my 2 girls in the past couple weeks.
I never liked the word BITCH, but they sure are living up to that name!
It was so bad last night that my husband had to break it up and got bit in the process. Roxy my 4 yr old, who I've had since she was 7 wks old has always loved Jazzi my 2 yr old. who I brought into our home at 1yr.old. She even played nursemaid to Jazzi's puppies last Oct. They both cleaned the babies and Loved them equally. Roxy was an old pro having had previous litters. Now there are no puppies and everything was going fine. I'm just not sure what happened. Do Dogs get PMS or something? because Roxy may be getting close to going into heat. I do use the same male, my little Auggie to stud both of them could that be part of the problem? It never seemed so in the past.