Strange nonsense happened, the baby took the head position, but I don'…

Strange nonsense happened, the baby took the head position, but I don't feel his head at all, and yet the body if I lie left, it swims left, if I lie right, then it swims right, the tension passed as well as pain in the coccyx, I was struggling from 28 weeks to 32 weeks, although on ultrasound there was a normal tone of pregnancy, now the belly is soft, I don't know if these metamorphoses are normal, I also think that the belly has dropped, but my weight is 73 already, I obviously don't grow because in the mirror too.