That's not leftover foreskin, those sound like skin bridges, which are malformations that come from a botched circumcision. They aren't harmful unless they hurt during sx or masturbation, or if gunk gets trapped beneath them and causes an infection. You can gave them snipped by a doctor.

And no, it doesn't affect the size of your penis.

does it really hurt to get them snipped and if so who would do this for me?

I don't think it would be anywhere near as painful as the actual circumcision was. I'd say it'd probably be equivalent to a papercut or piercing your ears.