I have been vaping for about 2 years now after using the vape to quit smoking. I am a pretty constant vaper. Over the past few weeks I've been coughing a lot and it's liquid I am coughing up. I am a singer and lately every time I try and sing I have to stop because of the liquid buildup in my throat that I have to cough up. It's especially bad right after I vape. It feels like the vapor clings to my lungs and collects in my throat. It's become a pretty serious issue. I did switch liquid brands a few months ago, maybe that has something to do with it? Does anyone have any experience with this?