I also feel your pain! i havent been vomiting but have been feeling nauseas all day long! its awful! and i am so tired, i'm finding it hard to keep up with everything around the house.. its like a bombs gone off, which is not making me feel any better. Thankfully Ds has been sleeping really well overnight so thats one thing. Otherwise i try and rest during the day when he is napping. I'm really lucky that Dh doesnt care if i havent done the housework or made dinner. Cant wait till 2nd trimester, hopefully we'll all be feeling better then. Try not to be too hard on yourself and just rest when you can.
All the best.