ive actually had that happen to me a few times sence i quit. i also vape the ego with the mega atty and carts... which sometimes surprising enough makes me cough if i get a big hit. nothing new to me though... cause when i would be a big enough lung full of smoke i would gag then end up coughing... dosent happen as much with vaping though.
I also vape juices from FSUSA, but im positive its not thier juice... i think its us just getting used to vapor and not the sticky tar that smoke produces. i think the vapor is just dryer then the tar cigs produce so it might be drying out our throats. maybe shoot for a higher vg content... i hear higher pg causes dryness.
thats just my two cents... but i get the same thing you go after being asleep for about an hour or so.
