I do need to drink more water, even before I started vaping. But who can really get 8 8oz glasses a day in?? So right now I'm vaping the juice that came with my first really bad kit, the firelight. Of course didn't do my research and jumped right in after tryin my in laws. The juice is 100% pg at a 16mg nic strength, and I smoked about a pack and a half a day of marlboro menthols, so I don't think its the nic strength. They aren't really bad headaches, more of an annoying cloud like pressure. A couple asprin take it away. Does the dry mouth get better with vg? I do like the throat hit but I can definitly deal with it being a little less harsh. I. So badly want to order so many different juices in different ratios, strengths, and from do many different places that are so highly talked about! But of course I can not do this because I just don't have the hundreds of dollars I would end up putting out due to my shopping problem..hehe! I need to make a list of everyones favs so I can eventually try them all! I haven't done any flavors yet, just the tobacos. At first didn't think I would ever try some of these flavors out there but now I am so curious. Just sounds weird to vape apple or strawberry, which are very normal compared to others! I hope someone can shed some light for me who has had this headache problem. And get a lot of peoples fav vapes!