Did the CT Scan and MRI's look at his neck and upper back ?

At 6 weeks, he is still early in his recovery. Nobody can predict much at this point.

What did the PT mean by it was just a miracle ? Has he been released from PT ?

In his current state, I doubt it is reliably possible to judge the effect of the Trazadone. It sounds like his brain is still struggling seriously.

Has anybody suggested high doses of Omega 3 fish oil ? He will also benefit from a good neuro vitamin regimen such as posted in the Vitamins sticky at the top.

He needs continued rest with gentle moderated stimulation.

What does he do each day ?