I am six months post-concussion. I was not knocked out and in fact had no symptoms until the following days. Persistent headaches have been my major symptom, too.

I've been on amitriptyline for about a month now, which is the first thing that has made any real difference. Still, I'm finding that it's easy to overexert myself and still get headaches. When I feel good, I tend to do too much. Unfortunately, the headaches don't come on right away so it's hard to recognize where my limits are.

The best solution I've found is to lie down in a dark, quiet place with a cold pack on my head and/or neck. Sleeping helps too, sometimes.

I've been taking a B-complex, vitamin D, and algal DHA daily.

Don't have much other advice than that, but I do know how badly it sucks. Hope you find some relief soon.