Hi, all. I'm new to the group. I have been vaping for 9 months after being a pack and a half a day smoker for 20 yrs. The only issues I had with vaping were dry throat and sinus irritation. For the past few days I have been having some more alarming reactions: heart racing, muscle weakness and spasms in my arms, chest tightness, all worse when trying to sleep. I actually only slept 2 hrs last night because these symptoms caused anxiety. Anyone else have these issues? Please help!!!!