Imaging would waste money, time, and radiation (CT Scan) and just feed your anxiety.

As I said, treat your anxiety. It has far more impact on your sleep.

Try taking magnesium citrate a couple hours before bed. Melatonin is known for not helping with sustained sleep.

Consider adding 200 mgs of L-Theanine and 200 mgs of 5-HTP daily. They can help with anxiety.

The CBD is likely only 5-10% CBD. The rest is hemp oil or something else.

I don't think a concussion expert doctor would have anything to offer, considering your complaints.

You sound like you want a sort of 'hand holding' relationship. "Yes, you suffered a concussion. I'm sorry you have experienced that."

Instead, you need somebody to help you get past the emotional assault trauma.

As one who lives with PTSD, I know the struggles such trauma can cause.