question for you moms who have used diclegis ?

What did your doctor recommend for your usage because mine said to take one every 12 hours. But I'm finding that it's too long. I get sick in between all that time or I get so tired that I feel almost nauseas because I feel so out of it. Does this sound familiar to anyone ? Please help. lol I'm 8 weeks and just trying to make it thru this first trimester to see the light after morning sickness