Anyone else 15weeks and just feel sick

Aleacia • Momma of 2 #3 on the way Aug 19

So I'm 15 weeks and I thought I'd start showing I have a little belly but I dont feel pregnant I just feel sick.. I always feel blah with a headaches but then some days I wake up and feel like a million bucks.. this is my third baby and with my first two I felt nothing like this.. just wanna see if anyone else feels like this opinions would be greatly appreciated...