Yeah, Im almost starting to think that the nicotine levels could be a little much for me. I'm 20, 21 this november and I have been vaping since october of last year; before that I had been smoking since I was 14. So a little over five years of smoking. But now I'm wondering if since I havent smoked for 20plus years that my body is not used to the amount of nic. When I first started I was using 24mg juice until I had a major panic attack. Then 18mg and another major panic attack that landed me in the emergency room. Now I'm using 11-12mgs and am making a conversion down to 6mg because again I am suffering from anxiety, and poor circulation in my left arm and leg.