You practice autosexuality, therefore- you're not asexual.
i use to eat 100% raw vegan , and experienced the this a sexual feeling ,
didnt masterbate for weeks at a time , then id force one out just to
make sure i was 'normal' haa , i dont know wether it was the diet or the
restrictive life style that comes with it
It is connected with diet, sure, ascetics from 2.500 years ago to this day all across the world know that "heavy" (rajasic and tamasic in hindu terms) food "stirs up passions". I personally am an antisexual, and organic and vegetarian diet really helped my meditative and ascetic living.