I had an operation last year to help treat my Phimosis and I can now full retract my penis.

My question is, Can Phimosis stunt the growth of the penis?

I just feel that my Phimosis may have restricted the growth as the skin on the shaft bunches below the head. Is it likely that this skin would've been stretched along the shaft when fully grown or is it just... extra skin?

I'm not particularly looking for a treatment because other than some Swiss device i doubt there are penis enlargers encouraged by the health service. I'm more just interested if it was possible and if a lady friend was to question the size of my penis i could explain it to her. I've not measured but I don't think it's longer than 5 inches which i hear is the average.