Morning sickness??

🎀Michelle🎀 • I`m a 25 year old mommy of a perfect son and a beautiful daughter! I am pregnant with baby number 3 due Feb 8!
Ok so this may seem like a silly questions but I'm seriously confused! I know that Morning sickness does not only happen in the morning! With my previous children I never had and sickness! Lucky me! 
Now I'm 5w5d and when I wake up I feel sick i don't get sick just feel sick! if I eat I am fine for a little bit I start to feel sick again! It's like if I don't eat every two hours I feel so sick! But then as soon as I eat I feel sick again! I'm so confused! Is this what morning sickness is like? Or is could it be something else!! I'm just confused!! Any help would be great!