@demo and everyone:
I tried nicotine in all forms : cigarettes, vape , snus...everytime it makes me feel lethargic and makes me feel like shit ONLY twice in YEARS after 2 BIG CARB MEALS after two hours I smoked a cigarette and it gave the desired effect which is dopamine and cns stimulation I felt motivated , it appears that I have an issue with brain glucose metabolisation ...which doctor specialty is concerned with this ?