I'd define my oldest as HG but not likely PG, but she is unusual enough to appear significantly different than MG kids and high achievers (the GT programs locally seem to be primarily comprised of a mix of those two with a few kids like dd coming along occassionally).
My youngest has been a work in progress in terms of my understanding who she is and where she falls on the gifted spectrum. My current leaning is low-HG and 2e but, again, probably not PG.
Point being, you aren't the only parent here whose kids aren't super PG. Also, I really wouldn't define how gifted the child is by milestones. The areas where my little one has stood out have rarely been in terms of being outrageously ahead in terms of grade level measures. What makes her stand out are her wild creativity, non-stop questioning (and talking in general), and skipping all of the intermediary steps in solving problems and just winding up at the solution.
