We have two dogs, aged 7 and 4 and love them both. Had them both from puppies. The younger dog has become very growly and aggressive the older he is getting. He'll growl and try to start a fight with the older one out of absolutely no where. Luckily the older one rarely reacts which de-escalates things quickly but every once in a while they will have a horrible fight if the older one does react. It's never the older one who starts it. He gets very nervous of meeting other dogs on a walk and 7 times out of 10 maybe will just go ballistic if we meet one and bark very aggressively at them so he has to stay on the lead at all times and we avoid other dogs if we see them coming.
He's started to just randomly growl in the last year or so too, I can't pinpoint exactly when that happened but it is relatively new.
I have a 2yo DD and am heavily pregnant. For the first time ever he growled at my DD yesterday and turned to nip at her, he didn't touch her but it made me extremely uncomfortable. We were all three on the couch together so I was right there and she did not do anything to him that I saw, I can only think at all that she may have stretched a leg and maybe to him felt like a kick but she did absolutely nothing deliberate or obvious to him. I already never leave her alone with them but the fact I was right there, he seemed perfectly calm and settled then suddenly started growling and turned as though to nip her has terrified me and I can't get out of my head now that we need to re-home him.
He's honestly a lovely dog when he's not growling and he has never bitten another dog or person but he is getting progressively more grumpy and unpredictable.
I don't know what has caused him to be like this, we did everything we were 'supposed' to do and he has an hour's walk minimum every day and lots of fuss, admittedly less than he had pre DD but still.
DH and I both work full time, we've spoken about how we just don't have the time to give him what he needs as he obviously needs some more extensive care than we have been offering and as I can't trust him around the children, I think the only option is to find another home for him which breaks my heart because I do love him so much, but I have to prioritise my children. I think he needs a home without other dogs and without children which we obviously cannot offer him.