Dog peeing in house

Hello!

One of our many animals is a 7 months old Jack Russell Terrier, intact. Started lifting leg and marking at dog parks etc about 1-1.5 months ago.

He has been potty trained and was doing really well, no accidents in the house. We have a doggy door so all the dogs can go in and out as they need, even when we are at work. (They are not crated, puppy is not even crate trained).

Towards the end of September we went on vacation and stayed in a cabin in the woods. The night we got there and went up to the cabin, the puppy was absolutely terrified. The first night and day, he peed in the cabin multiple times. There are local bears that live around the cabins, so i wasn’t sure if it was the scent of that, and we were also at 9000 feet elevation. I got treats and started giving him treats when he went potty outside, encouraged him to go on the deck, and just tried boosting his confidence. It seemed to be working, and by the end of the trip he was doing great.

Fast forward to coming home, and he started peeing on our garbage can in the kitchen. He does it once every couple of days. Again, he was fully potty trained and was never having accidents before we went on vacation. Last night while we were watching tv in the living room, cats and dogs roaming around, he went into our bedroom and jumped on the bed and took a massive piss in the bed. Pillows, blanket, sheets, mattress. He has never done that before. Today i went to work and when I got home, he peed on the garbage can again.

I feel defeated and I don’t know how to correct this behavior or what is causing it. He was seriously so good before this trip, and now since we got home, these potty accidents are really pushing me to the edge, especially the one in bed.

I washed all my bedding, and just used an upholstery cleaner on the mattress and sprayed and soak it with vinegar and baking soda, hoping that will remove the smell.

Please let me know if anyone has any advice.