33 weeks pregnant and feel like labour is on its way!

Natalie • Pregnant with my third baby :) couldn't be happier. Roll on August 2016!
Hello ladies. So I'm 33 weeks pregnant today, and feel like labour is coming really close.
I've dropped majorly, have had bad back ache (feels like period pains) can't get comfortable at all, feel SO hot, keep waking in the night several times, been so moody lately and snapping a lot more than usual. Just don't feel "right" baby is moving still. Her head has been down low for a while now, but can't help but feel that bad pressure feeling. Anybody else felt this way? Do you think it could be a sign of early labour symptoms? Thank you for any response! x