A Neuro Psych Assessment can be worthwhile, especially if you can find a Neuro Psych who has good experience with concussions and MTBI. Some NeuroPsychs have a bias against concussion causing dysfunctions. My NeuroPsych said my vast dysfunction was caused by depression even though I had no indication of depression on the MMPI. He claimed I faked the test even though I scored 49 out of 50 on the malingering scale. One needs to score below 37 to be considered malingering.

So, research to find a good NeuroPsych. Those who work with a NeuroRehab hospital or clinic are usually good.

The neuroendocrine testing can be good if you have a doctor who understands the results and knows what to do about them.

I would wonder if you are getting good sleep. When I have vivid dreams, it usually means I am not breathing correctly during sleep. Maybe a sleep lab test would be worthwhile. Or, an at home recording pulse-ox system for sleep.

I hope your doctor is open to the assessments you ask for.