Change in shaft skin

I’ve been doing some thorough jelqing for the past few weeks after 3 weeks off my beginner routine (first month of PE) . And my penis already feels a little “fuller” and a bit rounder in some ways. However, when either edging or masturbating the skin on the shaft feels like it moves over less of the shaft while stroking- sometimes not rolling over the head like it used to.

Why is it doing this?

(I was uncircumcised at birth as well.)