Frankincense side effects

I've been diffusing essential oils for awhile now, but just recently tried frankincense. After about 10 minutes I start to get a little lightheaded, sort of dizzy. It also dries out my sinuses and makes my nose itchy. It's almost like a high feeling, but not really in a good way. Has anyone noticed any side effects using Frankincense? This happens every time I've used it, but never with any other oils. I typically rotate between the same brands for all my oils: Now, Aura Cacia and Tisserand. The Frankincense is from Aura Cacia. I haven't found anything about this online, in fact I read it can help with vertigo and Ménière's disease. It's a very expensive and rare oil to produce and it's not uncommon for some essential oils to be adulterated, so my only other thought is that this oil is not pure and there's something else in it that is causing this reaction. Anyone have any personal experience diffusing frankincense? Tweet