Second baby and breech signs of labor?

Christina

I'm 36+6 and got a breeched baby on my hands. He's my second and I was curious about a couple things! I've had diarrhea the last week or so and was curious could that be a sign I'm close? Silly as it may seem! (Got induced with my first at 40weeks and never had any signs of labor) Also I'll be talking with my Dr tomorrow but I was wondering if you had your first around 40+ weeks when would they wanna do a C-section for your second?