Thank you all for your responses! I took two Advil around 11am, took a while to kick in, but it seemed to have worked pretty good for me. I didn't have a headache all afternoon. Just head discomfort and the feeling that I could get a headache if I pushed to hard. I did some light exercise on a recumbent bike and then hung out with some friends for a few hours. Around 6pm, the Advil wore off so I took two more. I think I have winner.

As far as the Amitriptyline, my body was likely getting too accomodated to 30mg so just I started 40mg last night. Neurologist recommended. I've been on 30mg for several months now. Also, I took a couple breaks from work and I think this made my symptoms worse. Sat around the house dwelling on my pain. Around April I was starting to have some headache free days so that when I decided to take time off work to get more rest. But I think it backfired and the lack of keeping busy kept my mind too focused on my PCS. I'm going back to work the week after next.

Its hard to classify my headaches but I don't think they are migraines.
They don't make me nauseous, no auras, and lying down in dark room doesn't help. They start when I wake up and last until I go to bed. Rarely do they wake me up in the middle of sleep. The Amitriptyline still keeps me pretty sedated. My headaches can range from a feeling of discomfort, cool tingling sensations in my forehead, all the way to sharp jabbing pains in the top of my head, temples, and forehead. The best way I can describe my worst headaches are a feeling of someone digging a screwdriver into my head and twisting it for hours on end. Computer use and reading exacerbate them and I'm one month into vision therapy to hopefully mitigate those triggers.

Good news is my occipital headaches are becoming less and less frequent. Almost non-existent (knock on wood). Something to celebrate at least.