For fatigue I recommend a high protein diet and trying to cut down on bad carbs. Building up your strength gradually through walking. I hear a lot of people talk about lethargy but without knowing your personal, typical life course and position it's hard to assess what can change.
Obviously being the right weight helps, drinking lots of water (8 glasses/day), good vit n min regime, sleeping well at night. Sometimes we forget the obvious things and only focus on our PCS or TBI. Go over my list and see if there are things that are positive that you can do to aid yourself without meds.
I am a 33 yr old female who has played football, as a hobby, for 13 yrs. In July, during a game I was slammed to the floor by an angry guy who hit into me so hard that he broke his ribs.
This knocked me back onto hard ground leaving me unconscious. I awoke to chronic head and neck pain, sickness and the inability to see or balance.
The paramedics made me walk to the ambulance, instead of placing me on a spinal board, where I was taken to the ER. I was hospitalised with suspected brain hemorrhage for 1 week, then on complete bed rest for 1 month, in a wheelchair for 2 months.
I have been left with PCS, moderate constant head pain, little short term memory, no memory of the accident, balance and sight problems, depression and exhaustion.
The worst problem is collapsing regularly.
I have had 3 CT's, 1 MRI and am under 3 specialists.
I believe everyday is one more towards improvement. Mainly I believe in the power of acceptance not the weakness of complacency or resignation.