I quit cold Turkey Jan31 of this year.
I did have some light headedness after the first few days yes.
I think it was due to "real" oxygen getting to my brain.
took 2 weeks before the cravings went away but after that its all been good.
do expect severe mood changes and being a bitch
My wife actually went out and bought me cigarettes during the first 2 weeks
because I was such an asshole. Thankfully I did not smoke tho.
best of Luck to you and remember one day at a time.
