Hi
@NWVapeBoy and welcome to the planet.
congratz on the week cig free.
its a known issue. your body is detoxing all the shite out of your body which can take a good few weeks before the body starts trying to heal the damage they caused. one thing that has popped up quite a few times is tongue or mouth ulcers. cigs and all the toxins can actually mask these issues so now youve stopped smoking they can start causing issues again. this does usually subside after a while.
another thing is some people dont get on with PG and this can cause some issues.
also add there is a lot of shite fake juice out there so where did you buy your bottles from.
what kit are you using at the moment? a low wattage mouth to lung with 50vg/50pg or a cloud chucker with much higher wattage.