Can't eat

So I've been having morning sickness for about three weeks and now it's getting to to point that if I don't eat enough I get really sick (weak,nausea and shaky) however once I get to this point it's too hard to make myself eat! I feel too weak to go to the kitchen or cook. Plus all food smells disgusting and I want to vomit when I put it to my fave and end up pushing it away! I know I need to eat got the baby but it's sooo hard....does anyone else experience this?