Distorted disc is one of the causes of obesity. Have you tested it?

sitting

When sitting on the side, it feels more comfortable to have one side on the left and right.

If you sit on the more difficult side like this, you can gradually improve your straightness.

sitting

It feels smoother when you sit with your legs crossed.

People who feel more comfortable on the right side are likely to have their left pelvis opening.

stood

Bending backwards is more difficult than bending forward.

If forward flexion is easier to do, the pelvis should be open.

stood

Raise your elbows to shoulder height, keep them level and move them back and forth. It feels difficult to move backwards.

People who find it easier to move forward have their shoulder blades open and their pelvis is affected.