What ohm and wattage are you
vaping at?? The lower the ohm or higher the wattage the lower the nic level needs to be.
Example: I was a PAD 40 year smoker. and vape UNregulated. So the ohm determines the watts.
When I started
vaping I used 20 to 24mg/ml
juice and 2-2.5ohm coil
Now 2 years later. I basically use the same amount of nic per day. BUT since I now vape at lower ohm and thus higher wattage and use more juice per day. I have had to reduce the mg/ml level to lower levels.
I use 12mg for build of 1.2ohms or more, below 12 watts.
from 1ohm to 1.2 I use 10mg/ml
and .5ohm to 1ohm 8mg/ml or less
I get the nausea if I chain vape say the 12mg/ml juice on a .8ohm coil, 20watts. But drop it to 6-8 I can vape as much as I want.
So I suggest you dilute your juice with zero nic juice or raise the ohm rate or lower the wattage.