is it normal vyvanse let me very sleepy and tired all day? and after 8 to 10 hours i'm very very hiperative?

Just some questions:

I take some meds everyday: Vyvanse (ADHD) Xanax (take 5 to 6 times a week as prevention for: Panic crisis, Social Anxiety and for some Traumas from my past), Valproic Acid, (Epilepsya and Convulsions) Aristab (Borderline, Depression and Anxiety) and Zolpidem (Insomnia, i take when im going to sleep in the night)

Is it normal to get sleepy with Vyvanse? (i don't so, cause it's a stim), but i have this same problem with minimum dose and medium dose, im not still in the max dose, but i think the problem will still happens? my focus during the effects is good, but like 8 to 10 hours, i tend to become STUPUDLY hiperstive and soo many impulsive, mainly with benzos. It looks like i have snorted a line