First time mom... anyone who went into labor before feel exhausted right before labor?

I've been feeling very sleepy and exhausted over the past few days and my arms and leg muscles ache. I feel more Braxton hicks lately but they go away fairly quick, including the usual back aches, tail bone pain, pelvic pressure (sometimes sharp), sciatic nerve pain etc. I just wonder if the exhaustion means anything because I honestly fell asleep 8 hours yesterday, took a 3 hour nap. ... I fell asleep 12 hours today and another 3 hour nap lol