Gender myths

So I've been thinking. People have told me with different genders your symptoms, cravings, carrying high or low, heartbeats etc will be opposite. But my experience is that with this pregnancy it's very similar to my previous one. With my daughter I had little to no symptoms, craved sweets, carried high, and her heartbeat was 150+ the entire time.. Now with my twins (boys) it's the same except that I'm getting larger a lot quicker and the lovely pains are coming sooner. So what I'm trying to say is the gender myths in my opinion and experience are not always accurate..