Same here, I haven't tried as many things as you have, but I too have been dealing with mild (now) headache on a daily basis ever since having scaffolding fall on my head in June of 2014. They almost vanished for about 3 weeks in March, but came back. ALCAR seems to help a little bit. I also do fish oil, vitamins, minerals, an turmeric (this accident seems to have turned me into a junkie, LOL, but I'd rather be doing something than nothing).