I have been using Naked 100's "really berry" nic salt (with 35mg of nicotine) to refill my juul pods for about 6 months. As of the past month I have enjoyed the juul brand flavor more, and have been using that more often. I have had pneumonia and in the past (and recovered a long time ago), but about a month ago I noticed that when I switch back to the Naked 100 juice, I would get these feelings that originally felt like the wheezing that I experienced while having pneumonia. I have since decided that they feel more like twitches in my lung area. This has been disturbing me recently and I was wondering if anyone has experienced anything similar to this?