Boy vs. Girl Sickness

Caroline
Hi fellow mamas - quick question: I wasn't sick at all when I was pregnant with our son - but this pregnancy, I've been much more tired and have definitely felt worse...
Wondering if I should chalk my discomforts up to running around after our boy every day, or if there's a chance maybe we're having a girl? I've heard that the hormones associated with femal fetuses can make mom feel sicker...just curious what you two-time mamas have experienced!