Hey, so recently i ran out of juice and my mate gave me some of his 6mg/ml nic ejuice. I have not smoked often in my life, maybe once a month and only recently. I have been experiencing a strong buzz/dizziness after only taking a few drags and occasionally headaches. Is this normal? I know i should probably stay off nicotine being a non-smoker but thought i would give it a try before i got some 0mg juice back. Thanks