Could the headaches tie in to weather changes? I get them when the barometric pressure changes, the headache is in the sinus areas, and can develop into a migraine. Or maybe something in the back, is causing the headache? When I mess up my neck, I end up with a headache, as soon as I can get those muscles to relax (usually with a heated neck wrap) the headache will lessen. I completed all my Herceptin infusions, but never had issues with the back and headache that I could relate to the treatment. Hope you find the answers soon! Hugs!

Thank you. I tried a heat wrap on my neck and that helped.