[Mykidsmom]

Could it possibly sensory integration disorder? Some of the actions you discribed sound so much like my son in pre-K and K. He never tested in the adhd spectrum. We worked on sensory which it sounds like you are doing with the squishy ball and the disco sit. The lights with the buzzing and the heat or a/c coming on would distract. He had a difficult time with drawing or coloring because he would not hold his writing instrument tight enough in his fingers.
He is now in 2nd grade and is bringing home A's and B's on his report card. He is in a very small class size but fast paced regular classroom.