It’s so interesting how widely varying the transition experience can be! My penis, which had been absolutely average in every way, started shrinking almost immediately upon beginning HRT. It’s size has stabilized somewhat and it’s fine. But what’s really alarmed me is how painful erections have become! It feels like WAYYY too much blood is getting pumped in there and literally as though it might burst! I’m told this isn’t unheard of, but it sure was to me. I guess in that sense it’s a good thing I haven’t had a spontaneous erection in a couple of years now.