I have nerve damage in my neck and down my right side. I used to get blinding headaches that made me so sick with pain I would throw up. Now, they are a bit less. Now, I pass gall stones. Anyone who has passed a gall stone can tell you what that is like. Giving birth to my son was a hang nail in comparison.
The ONLY thing that helps is concentrating on the fact that it will pass and I meditate. I use visual pictures in my mind. I see myself packing up the pain in something soft and dampening, to shield myself from it. I see the gall stone travelling through the duct and visualise an end to the pain.
For my migraine-type headaches, I have an all too limited supply of ibuprofen / sleep aid (I bought them in the US but they aren’t available where I live.) that I take for the worse of them. If I can sleep and get the swelling down, they ease and I can get back to my life.
Before I couldn’t get the anti-inflam/sleep aid, I took hot baths and that helped ease the pain, especially if I caught them early.
I am so sorry you experience this. It is not anything I would wish upon anyone. I sincerely hope you are able to get good professional advice from a doctor or other medical professional and that you find your way out of pain, permanently.