36 wks 2 days pre-labor symptoms?

Am

So for the past week or so my body feels like it's just shutting down. I'm entirely exhausted, which is to be expected, but lately my nights have been so restless. This is my last week of work and I couldn't be any more thrilled. I have had a noticeable change in discharge, WAY more mucous than actual discharge. I understand it's my mucus plug and it regenerates. But really has me concerned is the lower back ache and ache in my lady parts and my thighs. I had read online that they are potential signs of pre-labor but could just be third trimester symptoms. I've had 4 preterm labor scares, all I had to be hospitalized and even had steroid shots. I know I'm nearing to full term but I just want to be sure before my mind starts to freak myself out lolz. My appt is this weds so I'll ask all my questions then but I wanted to come up here to see if anyone's labor started shortly after these symptoms popped up.