I have been vaping for almost 3 years now and never, ever had this happen, but my daughter had it happen last night. I am so happy she has finally quit smoking and she has taken to vaping like it's the newest, greatest hobby in the world. She has a Provari mini and it was a smoketech carto that she had just primed with 6mg coffee juice that is a pg/vg blend..we both use it all the time. She is totally freaked out and says she is afraid to vape now. She said she primed the carto and took a hit and it instantly burned her throat all the way down to her lungs and it hurt all night. These are some new cartos we just bought as we usually use Boge. Anyone heard of this or have any advice??? thanks for any response, I have been searching but found nothing like this.