I have several different cartridges now, Cowboy 18s and a variety of others from V4L in several flavors and strengths. I am really trying to like this experience, but I find that my mouth dries out very quickly and my tongue gets a little fuzzy with an aftertaste. Is this caused by the nicotine, the propylene glycol, or the veg glycerin? Any thoughts? I don't know if this is normal or not. Thanks.