Girly Question

I bought some new bras in July or so that fit pretty damn well. So well that I bought two.

Fast forward to today. Said bra is slouching it’s way around my body, moving up and down. Now I’ve lost a little weight, maybe 10 pounds if that, based on my jeans now falling off when I run., but I wouldn’t think it would be enough to jack up my bra.

So what the fuck? Anyone else have experience with this? I’ve always have this problem-fits awesome in the dressing room, survives the jump and jiggle test, all of it. But when I get home, it’s like a helium balloon that’s gotten old. And I do NOT get it.

The girls are…substantial I know. But that shouldn’t matter. Should it?