The Mining Company has a good website with information about being hypo and hyper. That’s a good source for a symptom list. When I’m hypo, I generally feel REALLY LOUSY!!!! Sleep a lot (10 hours a night, 2-3 hour naps.) I have a much harder time concentrating than when I’m hyper. Weight gain, heavy periods, hair loss. It really stinks. (I don’t know whether it affects sinuses — could just be allergies, on top of being hyper. What a lousy combination!)
I hope you feel better soon.