I was diagnosed with chronic rhinosinusitis a month back. I took the prescribed medicines for 5 days instead of 7 as it was causing issue. After some time I was fine and it didn't cause any problem.. now since past few days I was experiencing vibrations in hand ( internal) nd then it got resolved and the problem got shifted to the head. I am experiencing dizziness and light headache. I checked and it says that sinusitis can cause Vertigo. Is it life threatening? Should I be worried?