Aside from the main game bosses, I also beat Logarius, Ebrietas, first Chalice bosses(didn't bother to do the rest of the Chalice) and the entire 5 bosses in the DLC. I level up every time I got enough Blood Echoes and by the time I reach Gerhman, I'm at level 95 with Vit: 35, End: 30, Str: 36, Skills: 27 with +10 Hunter Axe. Didn't level up my arcane and blood tinge.
I just want to know at what level did you guys beat Gehrman in NG and did you beat the DLC before going through Gehrman in NG? Does going through the DLC and optional bosses actually make me over level?