Hi all, Ive been vaping for about 6 months now, i used to love vaping 555 blend, RY4, and various other tobacco flavors. I eventually landed on vaping fruit flavors and found a daily favorite water melon. Now it seems i cant vape tobacco flavors anymore, ive tried about 6 different flavors from 4 different vendors. My wife love the tobacco flavors and i for soom reason if i try to vape on hers i will hack my lungs up. I currently vape water melon at 4.8 volts with a 1.8 nic. i even ordered my self a weaker juice at 4.5 volts 1.2 nic. and the same story start hacking away, i then turn around and pick up any fruit flavor at 4.8 volt or higher with 1.8 nic and im fine. I dont get it i vape tobacco for the first 4 months and now i cant touch it.