What Problems Does An Out Of Place Sacrum Cause Does Anyone Out There Know Anything About Illiac Crest Syndrome?

Does anyone out there know anything about illiac crest syndrome? - what problems does an out of place sacrum cause

I have repeatedly said that I did not even minor problems are sacral nerve pain sarcral classics. Did you know ... Pain in lower back pulled the legs and hips? Mine is the highlight of my lower back and very rigid. This happened a month after my first son, when my bones have started, moved upwards. Any ideas would be useful.