I started with e-cigs about five years ago. I've gone through many different models. I started mixing my own juice about three years ago. Everything was good until about two years ago. The vape became so harsh I could inhale without wheezing my lungs out. Thinking I had gotten the mix on the juice wrong I started Adjusting it. Nothing helped. Eventually I decided to try one of the Prefabs from a gas staition. Cheap and cheezy but I had never had this experience from one of them before. But as soon as I took a hit I started coughing and weazing. Does there come a time when you simply cant vape anymore?