Said a prayer for your son and your family.
I know it is hard to see a child go through problems. I remember when my son was sent to prison. It would of been better for me if they would of taken me instead.
When my son was 3 he started having sezures. Three kinds going at once. Stayed over a month in the hospital doing test. This went on for a few years. And the sezures stopped, they never found out why this happened. But was so grateful that it stopped.
I know how you feel. Different medical problem but the same concern.