What's does this sound like

Crystal • I`m 24 years old married Muslim, pregnant with second child
Hi everyone, I'm 8 week, the problem is when I wake up or I don't eat or drink anything for more then 3 or 4 hours, when I wake up I'm dizzy and feel sick to my stomach and really tiered then I drink some Orange juice and with in a few mins I start to feel better, what do you all think it is ?, thanks for all your help in advance