jwporter, what you are experiencing sounds familiar to me and probably to other post-surgical headache sufferers who post here. I'd recommend you get a referral to a headache specialist, pain specialist, or neurologist to help you find some relief. Some people respond well to drugs, others to Botox, others to physical therapy or a combination of treatments. Because everyone's experience is different, it's a matter of trial and error to find what will work for you. There is relief to be found. Be persistent in finding a doctor who will work with you. Regarding your concerns about working. I don't know what kind of work you do, but for the most part, the head pain didn't impact my work. The headaches might have caused me to be a little late, or needing to find a quiet place for a few minutes where I could pack my head in bags of ice, but I only missed half a day of work when I was in the worst of the throes of my head pain. I also got a new job during that time.
Hang in there. There's a lot of good info on this forum and a lot of support available to you from those of us who know what you're experiencing.
staypoz