If you stayed active throughout your pregnancy, did you (if ever) feel a crash sometime in third tri?

So I’ve been lifting and running (much less mileage on runs) throughout (and before of course) and everything still feels really good! Lifts specifically I’ve been able to go as heavy if not heavier. Runs feel a bit harder but it is also pretty hot and humid here.

I’m 30 weeks, my question is, did you ever feel a crash or a flip of a switch at some point in the third trimester? Just trying to prepare and have my expectations be realistic. Throughout pregnancy, including the first trimester, I’ve felt great! Now that I’m getting closer to the finish line, I want to make sure I’m planning accordingly. Am I in for a rude awakening??? lol 😆