I follow a healthy diet and supplement with vitamins and minerals (incl vitamin D).
I am 34 years old and I expect my hair to continue to recede at a slow pace. So the fact that native hairs continue to miniaturize is totally normal since I am not on any medication. (Why no medication? I don't like taking medication for fear of side effects). My only concern is that the transplanted hair has noticeably thinned.
regarding anagen synchronization, this should only affect 20% of the volume and for a temporary period of time. I have lost at least 50% of the volume of transplanted hairs and its been getting gradually worse for the last 2 years. So this does not sound like anagen synchronization to me.
I will wait for feedback from my surgeon. (Don't want to give his name at this stage as I don't want to bring bad publicity in case this is an isolated case and not a result of the surgeon).
Thanks