Hi Sam,
You have also mentioned noting some foods and/or drinks have exacerbated your symptoms.
With concussion, with migraine and/or other conditions, these conditions often tend to "sensitize" the brain and/or cause the brain to (hyper-) respond to various CNS stimulants or "toxins." Much is now known about the role of substances in foods/drinks referred to as "excitotoxins."
Please see the "Dietary Considerations" section of the Medscape article listed above.
http://emedicine.medscape.com/articl...erview#showall
Our own mrsD had posted a link on "excitotoxins", where neurosurgeon Russell Blaylock, M.D., is interviewed about excitotoxins. Please see mrsD's post which links to this interesting video:
http://neurotalk.psychcentral.com/sh...t=excitotoxins
I hope this information helps.
DejaVu