White stretch marks are *old* stretch marks; if they were red, they would be new and healing. But since they're white, they most assuredly aren't new.
Whether or not you get stretch marks (as I've told many pregnant moms over the years) is largely genetic. My personal theory is that you already had them from being large... as you lose weight, the skin is no longer so stretch, and they may begin to appear. Most likely you've had them all along, but now they're noticeable so you can see them. Link of it like a ballon. When you blow up a ballon as far as it will go, it's smooth and firm. Let all the air out, and suddenly it can be wrinkly and stretchy.
There's nothing that can be put on your skin to prevent or stop them, but staying well moisturized and hydrated helps reduce the *appearance* of them.
Writer, mother, wife, and breadwinner. I love to run, but running doesn't love me, so I'm switching to my low-impact bike.
I'm not pregnant, just fat: My blog. fatnotpregnant.blogspot.com/
| current weight: 190.6