I am thinking about the allergy thing, I had headaches for three days straight then I remembered that I had forgotten to take my allergy medication.
I use peppermint oil to help with headaches. I put it on my forehead and the back of the neck ( there are sinuses there also). So see if that will help you.
Good luck, make sure to mention to your doctor about the headaches, they effect everything that we try to do.
Luv and hugs, Karen
fibromyalgia, Chronic fatigue, depression,allergies