I dont know if this will be of any help, but I also was told the majority of my headaches were depression related stress related etc. As my mood improved certainly I did less focusing on my headaches but the fact was they were still ever present. Having soft tissue treatment and traction seems to have helped the consistent all day headache which is a big relief but my "concussion" head aches are still there. Sleep was a major help as well. If you feel like its not the cause, often its not. That's what I am finding, don't stop looking for answers