Welcome to NeuroTalk. Sorry to hear of your injury. Your fatigue will likely improve as you learn to moderate the excitement/activity levels. Many of us have a similar problem where we shut down cognitively from such events. It may help for you to read the thread with a link about NeuroEndocrine disorders. You may have badly cycling hormones, etc.
The promotion may be your goal but for the current time, you need to focus on getting control of your environment. You may need to moderate stress levels in your life for quite some time. Many of us have to be very careful about stress/over-stimulation levels.
It will also help to get your brain friendly diet/nutrition going. Check the Vitamin Supplements thread for info.
You have a good chance at a full life if you just learn how to live with a concussed brain.
Hope you can learn these skills and disciplines.
My best to you.
Mark in Idaho
59 years old, retired due to disability, married 33 years, father of three, grandfather of four, Suffered a serious concussion at 10 years old (1965) stopped most driving after last concussion at 46 years old (2001), Post Concussion Syndrome/Multiple Concussion/Impact Syndrome with PTSD, immediate and short term visual and auditory memory problems, slowed processing speed, visual and auditory processing difficulties, insomnia, absence seizures, OCD, 14 concussions since first concussion at 8 years old, Taking paroxetine for 14 years and gabapentin for 12 years. Added L-Tryptophan and successfully stopped all paroxetine after 3 months of tapering down. I currently take 500 mgs of L-Tryptophan when I wake up, 500 mgs after breakfast with my vitamin regimen and 500 mgs late in the evening.
As of Nov 15th, Due to high stress issues resulting in PTSD, my docs put me on three meds. Clonazepam (Klonopin, a dreaded benzo but only for 30 days ) .125 mgs twice daily (Doc prescribed .25 mgs twice daily but half a tablet is doing good) , citalopram (Celexa), an SSRI , and olanzapine (Zyprexa), an atypical anti-psychotic before bed. I have lost over 30 pounds since mid July. The olanzapine is supposed to help me gain some of it back but it has just stopped the weight loss. They took me off the gabapentin. I am feeling better than I have in years.
I am also taking L-Theanine to help with GABA regulation
"Be Still and Know That I am God" Psalm 46:10