Last couple of orders I've noticed the liquid being more and more clear. I only order 50ml /36mg Cheese cake. Not only more clear, but it seems not to be nearly as thick as it once was. I've got a lot of trouble with it running out from the bottom of the cartomizer and making a huge mess. I originally thought they may not be adding enough cotton/filter in the cartomizers, but I think it's the liquid. I've been vaping close to three years now..So I know how to properly fill it. Anyone else been having this issue?