My sickness was awful until about 13/14 weeks, then what I would call normal pregnancy sickness (like I had with Caitlin) until about 16 weeks. Its only really the last 2 weeks or so I have felt fine nearly every single day (I still get that random retching thing but dont feel sick which is odd).
Its really not fun especially when it seems to be lasting forever. Im not sure about feeling sicker with a girl. I duno what sex this is but I def felt worse than I did with Caitlin.
Really hope you feel better soon. You start appreciating things more when you've been so sick. I feel amazing that I can now eat a whole bag of dorito's and be watching a dvd at 11pm