This is an article of a paper that is yet to be published. View here. There is much more to the article, discusses a trial with growth hormone. BIAFAC stands for brain injury associated fatigue and altered cognition. It makes me wonder, how many of us had a genuine concussion prior to getting sick? I got one maybe 6-7 years prior to getting sick. While the CT scan showed no injury, i had over 9 months of headaches. I was hit by a car while i was riding my bike. I went over the hood and cracked my helmet.