Tmi, diarrhea and vommiting😖

Shiara • Im an 18 year old FTM, engaged to the love of my life, the beautiful man who gave me my perfect little son 😍 15/18/16💙
im 30w5d, and weve ALWAYS said that hes going to be early. Me, SO, MIL, FIL, and both my parents. I just have a gut feeling. Lately, everything hurts.. Walking hurts, trying to sit hurts, and dont even get me started on rolling over.. Its like i cant use any of my tummy muscles without excrusiating pain. 
Now.. The past few days i keep getting randomly sick. Like diarrhea and throwing up in the garbage can while being on the toilet.. My stomache will hurt SO bad, and walking is almost impossible. I even pulled a muscle in my back throwing up lastnight.. Could this be my body preparing for labour? Everytime i feel his head move down more, it makes me vomit so i know im going to get sick during labour..