Hi Sheds,
Your concussion must have happened right about the same time as mine. I fell on Christmas Day 2008.
I also have the occasional throbbing behind my eyes. However, my sleep has been very good lately. I usually sleep very well at night, but often need naps after work just to make it through the evenings.
I don't blame you for stopping the medication due to side effects. I did the same with Topomax and figured the headaches were less painful than the side effects. If your anti-seizure is working well for you, it might be better to just stick with it.
I'm praying that your headaches go away soon and also that you find comfort and peace as you continue in your recovery.
Don