I was teasing with my gyn a couple of years ago (she is one cool lady!) and said that my husband told the doc who delivered me that while he was stitching me up after the birth, that he should put in a couple of "husband stitches". (My hubby was teasing, btw!) She actually told me that yes, women do get reconstructive surgery down there if it's really bad, but that she doesn't like to do it because it can cause secondary pain, and she doesn't see it as worth it unless it's really bad.
I have no interest in this at all - it was just an interesting aside to my quip. But I've never forgotten this - hope it helps you.
I don't know about the part with weight gain. That would be a question for your gyn.
By the way, our privates are part of us and need to be examined, other than by our spouses LOL! It's GOOD to know what you look like so that you can keep tabs on your health. (And it's part of your overall sexuality.) Men look at themselves everyday. Just because you're a woman doesn't mean that you should be any different.
Even though you are older now and have kids, and look different, doesn't mean to not love the "new you".
Dawn