No, the prior concussion would not leave you sensitive to such a level. But, a prior concussion could leave you will a very sensitive upper neck. Many concussion symptoms are due to upper neck injuries, not brain injuries. I suggest you spend some time icing your neck and being careful to sleep and rest with good head and neck posture (straight, not bent over). The Vitamins sticky at the top of the index page first post has a recipe for making crushable ice packs.