A woman got attacked by her own dog, said it had been acting weird for a week?

It was more than likely a medical issue. What it was exactly could be numerous things-this however is a good example as to why it is important to bring a dog into a veterinarian if there is any change in behavior or if the dog seem to be acting "strange". There may be something seriously wrong with it that needs to be addressed by a veterinarian before it is to late.