I have been trying to catch my sleep, also jet lag, so I was not giving as detailed answers.
Uppland,
My right leg used to be the "good" leg, little pain, good range of motion. But when I was lengthening it about 2mm/day. I had some pain, also range of motion got worse.
SAD,
I do not know how common it is, I did not ask my doctor. I will try to ask my doctor via email. It will be interesting if one of Dr. Paley's patients ask him about his opinion.
Remember in the beginning of my diary I was complaining of pain when when lengthening 1mm at single setting? After that, I switched to 0.25mm 4 times per day, and the pain went away.
After that, about once a week, I would lengthen each leg 0.5mm at one setting to make sure I had some pain, meaning my legs were lengthening. A few day before my Jan 13th x-ray, I lengthened 0.5mm both legs, left leg had pain, right leg no pain. I kept lengthening right leg, I lengthened 1.5mm(all at once), still no pain.
I went to the doctor's office the next day, saw Dr. Birkholtz partner. Had x-ray, I think in 3-4 days. X-ray showed both legs about the same length. Discussed with Dr. Birkholtz and he said that I should see him more often (weekly). I told the doctors about my concern for absolutely no pain in the right leg. The guys before me had less/?no pain with lengthening towards the end, so I thought (and hoped) that was the case with my right leg as well.
Then Jan 27 came, and as I wrote before, found out that my right leg was not lengthening.