Hi, I am 16 years old male. I used to PMO often but since December I have stopped almost completely, haven't watched porn since then. I am really freaking out, recently I started paying attention to my penis more. So, for example, if I am watching some hot girls pics in Instagram or fantasizing about girls from school I do get an erection, but its angle is maybe like 90 degrees measured from my stomach and lets say it is semi hard,but If I touch myself just for 5 sec my penis goes harder and up. However, if I watch nude pictures of hot girls or even porn I get a stronger erection. I did some research and found about PIED and I am not sure if I have it or my case is normal . What do you think ?