I've searched the site, and found some heartburn info, but I was curious if anyone else has experienced the heartburn only with cirtus flavors? I'm just 3 weeks into vaping now, and though I love my Keylime and Lemon Blueberry I can't vape them for long before they cause the heartburn. Same nic level and PG/VG blend but no citrus and I can vape all day with no heartburn. I guess what I am asking is does anyone know if maybe going all VG with the citrus flavors would stop the heartburn? I don't really want to spend more money on a juice if it may not work out.