You may have had nerve compression. The is an impressive array of sensory nerves in this area, so your little physical therapy manuever may have released some compression. I don't think your cartilage was dislocated, but since you are better...and cured yourself....it really doesn't matter. We have a saying in medicine: Gone is Good.
Thank you for sharing your experience, however, I caution others who are having outer ear pain that this treatment does not work for everyone....or for every outer ear condition that causes the same or similar pain.