Have any of you ever had a "cigarette hangover" when smoking analogs?  I have many times.  Well...since 
vaping, sometimes after just about 3-5 hits I feel that way a little.  What could this be....too much nicotine?  My brand of choice with analogs was Newport so I tried 16mg cartos which I immediately felt were too strong and am now on 12mg....could it be too high for me?  Is that why I am feeling like this?