You mention that SIJD can cause congestion in the pelvis and can lead to dysmmenoria in women. What is this?
Dysmenorrhea is just a term for painful menstruation that doctors use so they can charge more. SIJD is responsible for a lot of things in and around the pelvis. Best bet is to get it corrected and then re-assess. When the innominate moves downward on the sacrum it also stretches the nerve roots. As a rubber band gets smaller when you stretch it so do the nerve roots. Therefore, when stretched, the nerve gets smaller and the fibers are compressed. At 15% elongation there is total mechanical blockage of sensation. The dorsal roots (sensory) are more susceptible to stretch than the ventral so when they are stretched you get numbness, burning and other sensory changes with no involvement of the disks.