"I’m not entirely sure the migraines even existed. On a few occasions, Jack admitted to me that he faked being sick to get out of school. It’s plausible that Jack made them up to get out of school or socializing, and his well-meaning but enabling parents let him do it."

Oh come on man, occam's razor. Debilitatingly painful and difficult to treat medical condition in childhood results in social isolation and an opioid addiction. A kid faking being ill once doesn't discount an entire life ruining disability.