15 weeks + gummy prenatal..

AC • ?
Sooooo, I'm 15 weeks 2 days and I still get sick after taking my prenatal gummies. I'm finally over the horrible morning sickness so I decided to start my prenatal pills again...not even 5 minutes after...I'm vomiting. What the heck?! 
Is this normal? Have any of you experienced this? And advice/input is welcomed!