Weight gain?

I’m genuinely really worried about unnecessary weight gain from Vyvanse. I was just prescribed it by a psychiatrist with a pretty small dose, I’ve only been taking it for a few days but I’ve heard a lot of people say it can cause you to binge eat after effects or even just bloat you. As someone susceptible to disordered eating I’m very worried, is there any way I can prevent myself from over eating or gaining excess weight from Vyvanse? Any help would be majorly appreciated