so i have had dirreaha and nausea fr days now. accompanied with back pain and some achiness in my…

so i have had dirreaha and nausea fr days now. accompanied with back pain and some achiness in my stomach. lots of what i thought were braxton hicks. im only 31 weeks and i have a history of preemies but i never had my water break natururally, doctors always broke it. my middle baby was born with her sack intact. tmi but i went pee and it was cloudy white? totally not normal looking. kind of worried. advice?