I have been having headaches for 3 months now. They last seconds and have quite a few per day. I feel them on my temples, sometimes cheeks, jaw, eyes, even top and back of my head. They are really random. I am on citalopram and was prescribed a beta blocker after my mri and blood tests came back ok. It s not working. They now think it s a sinus inflammation and am taking sudafen, it s not working either.