I too suspect that my 8 year old son might have congenital Lyme. He has been diagnosed with ADHD although he has many more problems than that, including encopresis, enuresis, various autistic-like sensitivities and habits, rages. He had been prescribed ADHD medications. We had tried them 2 years ago, but they helped only short term. He started loosing weight as a side effect of the medications, and his behavior started getting only worse, so we stopped it.
We started gluten-free diet about 2 years ago (suggested by a nutritionist), and it made quite a difference for him, but he still relapses regularly with his various symptoms.
Since August we have added some cranio-sacral therapy, homeopathic medication, also we started enforcing gluten-free and MSG-free diet more strictly. I am not sure which of these helped, but the last 3 months have been the best ones in years. But I am still fearfull about relapse.
I am planning to do Igenex testing for him (Western Blot and C6 peptide assay).