Sorry you're not feeling well hun!

Ive had the sinus thing before where you feel floaty and dizzy but it will not make you v*. You are fine! Calm down and tell yourself you are fine.
The d* is more than likely because you're worked up and worried so try to calm down, get some rest and remember to eat and drink as normall,
If you need anything we are all here!

Hope you're feeling better soon! xx