Suddenly started to develop coughing ??

[Youmadbrah]

I have been vaping for a year with no problem. Helped me to stop smoking sheisha forever!! But now I changed my devices ,from Reo grand with atomizers , to VV with cartomizers and CE2 tanks. Both give me big coughing when I inhale. What's going on ?? Even when I started vaping ,I started with cartos with tanks . never experienced this coughing. I am also vaping zero Nic. So what's the deal!?

 

[r77r7r]

R U using Boges? If so, they've been having issues.

 

[AttyPops]

Specs? Like volts and ohms. What carto.

Top coil clearos can be hot....

Do you think it's heat, or bad atomization, or juice, or lung problems?