For the past six months I've been experiencing what seems like dizzy spells or bouts of lightheadedness. I had surgery three weeks ago on my tonsils, sinuses, deviated septum, etc. I thought the dizzy spells had gone away but they are slowly coming back. Something new has started to happen. For the past four nights I've woken up from a loud bang or popping sound, clearly in my head, as nothing was going on around me to cause the noise. I've read a little about exploding head syndrome and vertigo and I'm wondering if it is all truly related?