By the end of yesterday I really felt quite dizzy and headache. I was vaping what I felt to be like a lot because I felt like it was more often then I was smoking, but less drags at a time. Anyway, Not sure if I wasn't getting enough nicotine or too much?! Although I woke up feeling dizzy too so I am thinking it is partial withdrawal? I was a Pack a day of ultra lights and am on 10 mg's right now. TIA for any thoughts 