Wow, that's awful. I've been a long time headache sufferer and what you describe sounds truly terrible. Two things . . . physical therapy. Have you ever considered that? The things I learned were helpful. Ice pack on your head, for example . That was recommended to me. Physical therapy also taught me stretches that released this and that, here and there that helped the overall headache situation (the area felt like yours, pressure. They said because everything is pulling on it as it is all interrelated. There is a spot behind our ears, for example, that when tight, makes the head feel this type of pressure). And what I found MOST valuable for relief, was a medical massage. he only worked on my neck and head. I did it weekly for as long as I could. I had a prescription from my doctor but it wasn't covered by insurance. but it could be used as a medical expense that way. I also get nausea and vomiting as a pain response with headaches. So awful. So so awful. https://www.medicalnewstoday.com/articles/321308#medication-overuse There are headache clinics. We have one affiliated with our university teaching hospital in our city. That may be a place to start looking for further help. You have to get free from this!