Almost 6 weeks

hi y’all. so i’m about 6 weeks pregnant with baby #2. my nausea right now is through the roof. i’ve been feeling so sick the past few days. i know that’s normal. but it seems like every time i stand up i’m getting dizzy and my vision gets blurry. i get hot and sweaty and i feel like my legs are going to give out and i’m going to pass out. is this a normal feeling to have? it doesn’t get better unless i lay down/sit back down.