Hey, I'm 21 and been vaping since I was around 18. Recently as in the past 2-3 Months I've been having shortness of breathe and chest tightness. I've had issues with this and the past and got real worried its vaping etc but then it ended up not being vaping. I don't know what to think because sometimes i dont feel it or im not paying attention to it and other times i feel it strongly. Especially when I lay down to sleep. Other symptoms sometimes include coughing/gagging and I have a sense to take a deep breathe a lot. Any others had similar things happen to them with vaping?