here, since you haven't argued with ME yet, let me see if i can explain this, shadoe.
you: hi i'm vaping and there are no studies on PG and VG inhalation and i THINK it could be causing me to cough up blood.
us: hey sorry to hear about the coughing up blood, but in fact there are plenty of studies of inhaling PG and no reports of anyone else coughing up blood. you should really see a doctor.
you: yeah well i'm still coughing up blood and i still think it's the PG because no one has done studies on this.
us: hey yeah, well, we still think you need to go check with your doctor, and YES, there are still plenty of studies done about inhaling PG.
you: why are you all jerks and don't even care or want to help me? i'm just saying it's probably from inhaling PG because no one knows what it does, oh and also the flavorings.
us: um, hey, its the forum again. yeah there are a lot of studies done on inhaling these flavors and PG, and no one is coughing up blood. go see a doctor.
you: you all are idiots and don't even pay attention, i SAID it is from the PG because no one has done studies on inhaling it.
us: sigh.
that's how i read this whole thread.
now.
let me clarify a few points for you.
yes, PG can dry out your throat, so, drink water. there you go. the water will rehydrate your throat from the dryness it is causing. PLENTY of people will back that, and add that they've increased liquid intake (as in, drinking water) about 3x.
so there's one thing. drink more fluid if you're vaping.
second thing. SMOKING ANALOGS will numb the cilia/hairs in your lungs, you know, the ones that make you cough? as you STOP smoking...they start waking up again and will start WORKING properly again, and therefore, they may start making you COUGH a lot more to clear out your lungs. they weren't always doing this because you were SMOKING. also, search around, you'll find this info in the forums as well. some people had an increase in coughing when they stopped smoking and took up vaping, and even started coughing up nasty chunks of tar and other brown disgusting things that were in their lungs...mainly because their lungs started working better due to not SMOKING.
as for inhaling PG and flavorings.
just how much e-juice are you vaping a day? that's another point to take into consideration. some people go through 3ml a day, some 1ml, and either way, these are rather small amounts. when you consider the amount of flavoring that is included in these, again, VERY small. the flavor is often less than 20% of the whole mix, and the flavoring itself is often largely PG, so yeah...not alot of unknowns in that mix, other than probably a 2% amount of real flavoring "chemicals" inside your e-juice mix.
the general consensus of the thread is, hey, you're a newer member, you asked a question, and we answered you to the best of our knowledge.
you started pushing back, insinuating we don't know what we're talking about because obviously if it happened to you, that you MUST be the one unique single instance of someone bleeding from vaping. well, law of averages man. very doubtful. it is though, incredibly likely that another outside stimulus that we were not aware of, is causing the bleeding, and that's why you were told to go see a doctor.
other thing...in this recent post above about your doctor visit (finally) you say you have COPD? also may have been something to mention early on, just sayin. you threw out a small amount of information, and then kept adding more and more as you got answers from everyone, and still acted like we were wrong and you knew what you're talking about.
plus...all the snide insults to everyone that didn't agree with you, and telling them "omg well i don't ever want you commenting to me on the forum again" and also CLEARLY directing a snide comment, getting called out on it, saying you didn't, and then "oh well yeah, i DID direct that at you..."
sigh.
i'm just not understanding your angle here. alas, you do have your answer now, so, good luck with that. hopefully everyone will answer your questions with the information YOU want to hear and in a way YOU want them to answer instead of what we pretty much know to be accurate.