Juan Lucas

Hi. I've been a regular vape wild ejuice vaper for about 2 years now. I've recently bought a new brand of e juice (Kilo cookies & cream) and I've been getting weird side effects. I've been getting symptoms for PG allergy aforementioned here: http://www.whitecloudelectroniccigarettes.com/blog/e-cig-vapor-vs-tobacco-smoke-which-is-more-harmful/ Irritated sinus and ear canals, mild to harsh headache. Yet I'm vaping at a higher VG to PG ratio (70/30 VG/PG instead of 50/50) Does anyone know if it's the PG or possibly the flavoring? Thanks!