Hia,
Mine did when I first started, they were kinda engorged with blood I guess. No issues with nipples but hey, we're all different.
That was a few years back, they did/have remained more bouncy, even at age 54 but not as much as in the first instance. I noticed it again when I increased pumps, they also pumped and settled. I think you either get used to it or it deflates enough not to draw your attention after 1st noticing if that makes sense.
TD