You might find this website very helpful. I came across it as I was researching if headaches could be caused by the coconut oil I just started taking this morning. I read some of the articles on the website I have linked and found them to be very informative...and since I am one who would much rather have a natural medicine than a prescription one...the information I found on this website is good. And yes headaches can be caused by coconut oil...but mostly because the coconut oil is killing off "toxins" in your body. Right now I know I have alot of toxins so if I have to live with a headache for a short time to rid my body of those toxins...I will gladly put up with them. https://www.earthclinic.com/cures/acid_reflux.html