I tried that, still got a headache. I just put in a fresh bottle of 8mg nic and so far no headaches as of yet still kind of craving more though. May have to push myself and get used to this level.
Finding the Right Nicotine Level coupled with the Right PG|VG Level can sometimes be a Pain. But you'll get there.
I knew someone who would take 2 e-Cigarettes to work. One with their Day-2-Day Nicotine Level. The other with some Higher Nicotine.
She used the D2D for the Drive and at Lunch. And the Higher Nicotine on Her 15 Minute Breaks.
Once She got about 2 Months completely Cigarette free, She found She could just take Her D2D set-up. Because the Triggers and Cravings were behind Her.