Regarding #1 if you have a sinus infection it can cause localized pain in your face.
Regarding #2 keep working. This dizziness is a nuisance, treat it as such. It is not a life threatening condition and try to keep as normal a life as possible. Radical acceptance helps, but easier said than done.
Also keep trialing other meds. I plan to give amitriptyline a six month run and then reduce the mg and add a second drug and see what happens.
For me i can say for sure my good days are getting better but my bad days are not disappearing either. I had a shock of dizzy episodes yesterday so a little rattled today.
I was planning a road trip this long weekend and i still want to make it happen. Will keep the group posted if i made it or not.