I suffered with chronic daily headache for many years.  I was told that it was psychological, and I guess that any pain you have is made worse by stress.   There is a link between concussion and headache – and in my case every time I have had a concussion I have experienced headache, so I don’t know how much concussion has made me vulnerable to headache. However, what really helped me was following the Low Tyramine Diet and avoiding working directly under fluorescent lighting. I still get headaches but much, much less frequently.  I don’t follow all the recommendations in the low tyramine diet.