Knots

When my stomach is in knots, you take the time to investigate it.

it looks like it's...

    Right over left.

            Through the center.

                    Left over right.

When my stomach is in knots, you grab both ends of the thread gently. 

I think I can...

    Left over right.

            Through the center.

                    Right over left.

And then the thread is just thread. And you are you.