I get migraines in my sinuses all the time, and I tend to find that those are my worse migraines. They are so bad that I sometimes have to scream! At first, I thought I was insane because none of my doctors could see anything wrong with my sinuses. I saw all sorts of specialists and had test and imagining done on my sinuses. No one could find anything wrong! Finally, I brought up the extreme sinus pain when I was seeing a specialist at the Diamond Headache clinic and she said that I was experiencing migraines there and it was just another aspect to my headache. (I have daily chronic headaches with migraines, TMJ, and neck pain as well). I find that when the sinus migraine is getting really bad, I use my rescue medication (I use Sumavel Dose Pro or Zomig Nasal spray), and that usually helps. If it doesn’t it, than it means a trip to the ER for me. (Wahoo)!
I would suggest seeing your headache specialist. Please let me know if you have any questions and good luck to you. I hope that you find something that works for you!