The knot in the belly

For a long time I have felt a kind of knot in the belly area.

The contraction or felt experience seems to be more painful if I spend a long time in front of a computer screen for some reason.

After the pain has to surface the mind seems to increase the grip of it thus leading to more pain.

I have tried various healing tools on it with little success. The open focus brain exercises seem to work the best so far.

Open focus lessens the grip of the mind of experience leading to an open focus / open awareness where all experience is just "let through" so pain is diffused.

Here someone has written a bit about awakening of the belly.