When I sing higher notes in my head voice, especially on the EE vowel around the G#5, my throat tends to get irritated and itchy feeling. It's right in the back of the throat above the adam's apple, causing me to want to clear my throat or even cough after hitting higher notes. I don't really feel like I'm straining to get up there and I'm using support/vowel modifications etc yet it still persists. It's also at generally higher volumes, so I'm wondering if I'm using too much air and irritating the cords? I want to make sure I'm not doing any damage.