Has anybody read anything recently about the possibility that grains containing gluten, that is, wheat, rye, barley (and maybe oats) all contain exorphins which are thought to have the capacity to have effects on ADHD? The research is on-going in that regard, but it is known now that exorphins (products produced when gluten is metabolized) have many detrimental effects mentally on people sensitive to gluten. (It isn't the same as Celiac disease because the symptoms affect the sensitive person differently than Celiac does.)

I would try eliminating wheat, especially, for 1 to 2 weeks and see if you feel any better. It is not essential to have grains in our diets. The amino acids can be supplemented by eating more green vegetables, seeds, and nuts.

There are verified cases of people developing dementia from use of wheat. One schizophrenic at Duke University completely recovered from schizophrenia by eliminating wheat from her diet. She was released as cured. It can affect many organs of the body, including the skin.

Not that much is known yet about sensitivity of the ADHD patient at this point, but the symptoms you describe are very clearly similar to the descriptions cited in Wheat Belly by Dr. David Williams. Research is still on-going, and Dr. Williams states that the more they learn about this problem of exorphins in grains containing gluten, the worse the problem is turning out to be.

It all has to do with agricultural re-engineering of the wheat genes to produce a
more productive grain. Doing so altered the genetic makeup of wheat and it is now
believed that wheat is not healthy for us to use because of the genetic changes
including increases in wheat chromosomes. It is the "dwarf wheat" that was created by
re-engineering the wheat plant, and 99% of the world use of wheat is now dwarf wheat.

Dr. Williams' book is worth your reading if you have time.