My first on time period

Ok so i has my first period about two years ago. i just started my period and this is the first time it’s been on time. i know that it takes a while for it to be on the same time every month. today is day 3 out of normally 7-8 days of heavy bleeding and i’m getting extremely dizzy but only when i’m laying down and i’m getting very nauseous. i keep feeling like i’m about to throw up after i get dizzy but i never do.

did anyone else have the same thing happen to them when their period started to become regular? or is this just what’s going to happen when i’m on my period.