Hi yes I was diagnosed as having post traumatic migraine with aura 3 months after my head injury, but strangely enough I did not suffer a y headache at All until then. They gave me beta blockers to help but I prefered not to take them. I found yoga helped a lot and keeping stress to a minimum. The headaches are few and far between now thank goodness. I don't know but maybe there is a pattern to this PCS and this is just the headache phase for you now. I do hope things improve for you.
You must try to be patient it will get better over time, but do remember to get plenty of BRAIN rest also
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