I am EXTREMELY skeptical that your sacrum was misaligned or that your osteopath "clicked" it back into place.
How could this happen? It didn't. The sacrum is fused to the rest of the pelvis. You can't "misalign" it without "misaligning" the entire pelvis. That's why the answers given by DOs are so vague & evasive. You were the victim of plain old quackery.