The water in the toliets (2) and the kitchen sink seems to bubble. We have a septic system

Bubbles indicate a blockage. The bubbles are blowback as the discharge hits the clog and bounces back.
The first thing I would have checked is the septic tank.
If you know where your cleanout is open it up and cycle the washer. If you see water backing up the tank needs to be pumped.
Good luck, Tom