Girls, can you help me out?

Girls, can you help me out? First pregnancy, two weeks ago the baby dropped, the doctor said it's very low, and on the ultrasound too, the baby is fully ready, only the cervix isn't mature yet. Now I have cramps in my uterus, and I run around like crazy all the time, sharp shooting pains in my lower abdomen/chest area, and my back feels tight as if I were having periods, and my posture changed because the baby is pressing down hard. All of this I tolerate, waiting but for the last couple of days I feel like I want to go big, appetite decreased, but even if I eat something, my stomach hurts, is that normal? It's really uncomfortable, I'