I assume that the question is: "does smoking
weed lead to acid reflux
?" my standard answer applies.
It depends on what you are smoking. And, when you smoke "street" drugs, you never have any real idea of what you are smoking, exactly. So, even thought it may be, mostly, weed, there may be something else in it. And that "something else, " may well cause gerd. There is no way of knowing.