If i am diagnosed my a nutritionist as being hypoglycemic is the nutritionist right or should i go to my m d ?

i keep becoming non responsive when i get blood work done . i also am in a bad mood a lot but when i eat sweets i m fine and all happy . i sometimes have seizures . i think when i eat i do really well but not when i don't eat . i don't want to have too much energy but i don't want to be falling asleep all the time .