Prenatals making you sick ?

Naia

So I stopped taking my prenatal pills and irons for a few weeks then got a refill Friday and started back taking them I’m 22 weeks I haven’t really had bad morning sickness like this since my first trimester, I stopped taking them and wasn’t sick nomore now since I took them I feel nauseous all day like I have to throw up all the time and it just won’t come up or I’m just throwing everything up any advice ? I tried taking them after I eat didn’t work , before definitely not , tried eating a little them taking them and eating a little more don’t work then tried taking at night before I go to bed nothing works I want to stop taking them completely I’m tired of feeling sick and drained all day