Do you ever not feel like yourself?

I hit 31 weeks today but I’m measuring 3 weeks ahead and the baby is already over 4 pounds cause I have gestational diabetes and they caught it late. Anyways. My question is at some point did your body not feel right?? Like you just felt something off?? I’ve been getting Braxton Hicks lately but they are so strong that sometimes it takes my breath away. And I’m overly exhausted. Did anyone else feel like this as well??