A not so recent workshop reinforced the notion that the pelvis "is" indeed the structural "engine room" of the body and in effect does affect what happens elsewhere in the muscular skeletal system.
It therefore stands to reason that if the "foundation" of a building or structure is out of alignment then problems will occur. General tell tale signs like uneven illiac crests and/or one shoulder up and the other down will indicate a pelvic misalignment.
In cases of structural dysfunction I generally refer on to my chiropractor (see Health and Wellbeing) on my website ( www.metamassage.com.au)
Next time you stand in front of a mirror please have a look to check how level your shoulders, chest and hips are. If you can "see' unevenness then it's like that you have pelvic misalignment whcih can be fixed.