Are my symptoms normal, to be so early???

Jordyn`s Mom
I just found out two days ago that I'm pregnant, but what made me take a test was because of the symptoms that I was having, according to Glow, I'm 3wks and 2days... So I have two kids, so I'm not new to pregnancy, but I never felt like this with my other two. I eat constantly, like I can eat a meal, and still feel like I'm starving 5mins later, lol, and if my bf say anything that I don't want to hear, I start crying at the drop of a dime, and my boobs OMG they hurt so bad. It's so early in my pregnancy, I was just wondering if that's normal, for it to be this early???