Caramia,
I am totally feeling you right now. I am in my 12th week of pregnancy, and I have been extremely ill for the last month and a half. I actually couldn't keep anything down, not a tablespoon of ginger ale, not a single cracker. It got so bad that I had to go to the emergency room several times for dehydration and constant vomiting. I am finally on a medication that prevents the vomiting so that I can eat, but it's expensive, and the insurance gives me alot of trouble about it. I am soooo fortunate that it started AFTER we got back from Disney! It started literally the week after we got back. I am being told constantly by my nurse and midwife that this WILL stop soon... it's extremely rare for it to last beyond the 12th - 13th week. I am sure you (and I) will be better soon. It's depressing, though... being this sick and lethargic all the time is no fun. I can't wait to feel energetic and healthy again! Try all the age old remedies... ginger ale, lemons, eating something first thing in the morning, etc... but if they don't work, just insist upon being given something that HELPS. I tried 3 different medications before anything even phased me. Sometimes, if I'm just a little nauseated, drinking iced tea with lots of mint calms my tummy.
Don't worry about your trip to Disney, though... by that time, you'll be feeling much more inclined to eat, and less sensitive to smells, etc. Good luck.