When I had my first, I was sick everyday right thru. Then pg with my second and the only thing I had were the headaches, which really meant nothing as I always have headaches. Then with my 3DD's really only my last DD that I had really any sort of nausea and loss of appetite. Try and keep positive, not all pgcy's are the same. If you are really worried go and see your GP and ask for a u/s as you are concerned not all is right.

Good luck and let us know how you get on. hugs