First about your sinus problem: try to take a steam bath. Boil some water put some thyme in it. Then sit down at your table, with your face over the bowl of water and thyme, with a towel over your head and the bowl. Then breath in, the steam. That way the swelling might go down.
Dizzines during anxiety: try to learn how to breath when the anxiety is on its way. Breath slowly, with your stomach.
Hope I´ve been to some use...

((((((lostone)))))