Neurofeedback has been shown to be helpful for almost any neurological related disorder unless it is a result from another system in your body malfunctioning. It is very helpful for PTSD symptoms. A protocol called alpha/theta training is used and it is very effective in alleviating PTSD. Sometimes, a concussion/brain injury will exacerbate an underlying condition you may have but you were doing a good job keeping in check. So, that may be the case here. As Mark mentioned, it may be worth your while to get some lab work done. I would suggest getting a complete metabolic profile done, check your thyroid (TSH, FT4, FT3, RT3), check all of your sex hormones (testosterone, free testosterone, estrogen, PSA, progesterone, pregnenenalone, SHBG, and LH), check your adrenal glands by doing a 24 hour saliva test, check your growth hormone and B12 (if this is low, it can be an indicator that your other B levels are low). Although it is highly doubtful that you have this, you could also check for Lyme disease. The great news is that insurance will cover the majority of these tests. And keep this in mind, just because your levels are within normal range does not mean that is a healthy range for you. Some docs are so mechanical in their approach to medicine that they will only go by the ranges the lab provides and if you are within range, they will dismiss you as being fine. I had this happen to me with my testosterone and adrenal glands. Both were low but within normal range and my normal PCP said they were fine. I got a second opinion from a specialist in hormone replacement therapy and this person said I had the profile of 95 year old man (I'm 31). So, just make sure to do your homework.

Like most things related to the medical field, your average run of the mill doctor will not know to test for all of these things, nor will he/she know what to do with the results. You will have to find someone who knows about hormone replacement therapy and thyroid/adrenal gland therapy. And trust me, Endocrinologists are completely ignorant on how to properly treat the thyroid/adrenal glands, so stay clear of them if you can. I've had pretty good luck with anti aging doctors and holistic/naturo pathic doctors. You should google: "adrenal gland, thyroid, doctors" and you should find one in your area.

As far as the links go, I was going to peruse the internet and find them for you because I don't have them on this computer, but I figured you could just do that yourself. Just google: "neurofeedback, research, brain injury, hoffman" and you should find all of the articles related to this. You could also look into: "LENS, brain injury, research" and find some info on that. Good luck.