Early labor?

Tia

I am 36 weeks today. My baby has dropped about a week ago and since I’ve had a ton of pressure and shooting pains in my vaginal area. Today though I have diarrhea like crazy and just feel very off with lower back pain. This is my second but my first was induced and I never had any symptoms ahead of time of labor, so I’m not sure what to expect. Is this a sign that labor is on its way?