Hi, I know exactly what you mean. I was told by the ER doctor that he knew alll about people like me as he had worked for an insurance company!! My MRI and C/T scan were fine. I am now in my 6th year of PCS. I can cope with most things like I know my IQ is not what it was, I can cover up forgetting things, but can't handle the remaining fatigue. I am a legal executive which is like a para legal in the US and do property conveyancing and subdivisions etc. I can now only work 3 hour days. I had several bangs on the head, supposedly minor, 2 of them only 6 weeks apart. I have had to explain to the neurologist about concussion being cumulative. I have ended up being divorced - my husband and I split in the first 6 months. I have found that I have constantly had to justify my symptons and about 2 years ago went to Australia and had a QEEG - and at last there was some physical evidence of the injury! I now have an explanation for my tiredness. Unfortunately as I am over 40, female and it has been longer than 2 years the odds of recovery are not so good for me. I believe that the higher your IQ pre accident the worse the tiredness is as you are still trying to function at the same level and pace. As you are obviously young I would expect you to improve slowly. Make sure you rest before you are totally tired - and I should practice what I preach!!!