Dog acting up

My dog is 3 years old. She has always been an amazing dog. I’ve always been able to leave her home alone with no issues whatsoever

For the past 6 months though it’s been nothing but trouble and I can’t figure out why!!!

She’s been chewing on the walls, chewing up pillows, won’t come back inside after I let her out to go potty, she chewed up a pair of scissors, a pencil sharpener(luckily didn’t swallow the blade) and the list goes on and on

She has toys to play with, I’ve taken her to the vet and she got a clean bill of health, I take her on walks, I haven’t changed her food, I haven’t changed my work schedule, she’s not around any different people or dogs, etc.

I don’t know what the hell im doing wrong!!! I can’t get her bad behavior to stop

I just left the living room to go pee which takes 2 seconds and in that time, she chewed up chop sticks that were sitting on my living room table

But the weird part is that she chewed them up right out side the bathroom door like she knew I would hear it and see it

Any tips?!?!?