Hi welcome to Healthcaremagic
Hi kayla.. the Sacroiliatis is caused due to the compression of the nerve root
in the sacral region..
This will lead to more inflammation, intensifying the pain... The numbness
in the lower limb , is the starting sign of the compression.. this may progress to paralysis
of the limb, hence the only solution is surgery, medication or physiotherapy
cannot cure it...
Hope I have answered your question..