J.S.
HI K.,
sorry to hear about your son. Any idea when he may have contracted the Lyme disease? What is "abnormal brain activity?". Did they do an EEG to determine that? (EEG is a common test done to asses brain activity) EEG's can show mutiple things, and depending on what it shows, that usually how the MD's come up with Diagnosis and prognosis.
That might be a place to start..I'm not that familiar with the symptoms of Lyme disease, but I am a Registered EEG Technologist and actually do the procedure..so I see lots of brain waves.
J.