My 2 dogs (dog and bitch) over the last week are just not getting on, they have gone from being inseperable to not being able to be in the same room for longer than 2 minutes.

One of the scraps started after their evening feeding time but the other times just seem to be random and caused by something as simple as a sniff...their routine hasnt changed in any way so I just cant pin point why this would happen, I'm trying to look up on it but nothing I find seems to be the same situation. They have been seperated since as Tia got hurt last time and I dont want to risk any more damage. I always thought Tia was top dog but she seems to be scared and frightened by the goings on and in the scuffle I stopped yesterday she was definatly trying to get away from the situation.

Logan did have issues with his aggression when he was younger and spent some time with a behaviourist but it seemed to be solved quite easily and he has never had any alterecations with other dogs since. They are both calm dogs who tend to love sleeping and strokes and the only barking I hear is off Logan if the door knocks.

They have spent every single day for over 2 years together so I would really just like to know if anyone has any ideas on what would bring this on now suddenly.

I am aware that rehoming one is going to have to be considered and no matter how much its upsetting me I know that its what needs to be done. Im speaking to various people now about moving that on but I really am baffled as to why this is started so any thoughts would be appreciated.

Has ill health been ruled out, in the dog or bitch, as it is most unusual to have a dog and bitch have real fights.

also a lack of exercise with the recent  bad weather. Has thier routine been changed ?

I walk them seperatly, only change is we havent been hanging around on the field as long as normal. I just dont understand it and killing me keeping them apart. Im going to make an appointment with vet now and try and get in today.