Migraines make me feel spaced out and weird, even if I don't get the full-on visual aura and nausea/vomitting. Sumatriptan, plus an anit-emetic, sorts it, but I usually need a sleep before I feel properly over it.
Sinus headache is just incredibly painful. I find an OTC decongestant tablet and co-codamol does the trick, and having a hot shower seems to make it get better more quickly (inhaling the steam helps, possibly?).
My migraines have quite specific triggers: fluorescent light or flickering light, some smells (certain paints, paraffin), going a long while without eating, being very overtired, prolonged spells of intense concentration, but sinus pain starts without warning.
I had surgery on my sinuses in 2003, and it's much better now. Although the scan only showed a very small area of diseased tissue, when they did the surgery they removed (don't read on if you're eating)
"a huge, slimy, infected polyp" and widened the openings where the sinuses drain.
Since menopause, I find my migraines vary tremendously. I used to always get violent vomitting that could last as long as 72 hours, to the point where I've been admitted to hospital for a few hours to be rehydrated intravenously. Now, I sometimes don't even feel nauseous with them, never mind throwing up. They're nowhere as frequent, and they're over much more quickly.