A friend of my son asked me recently:

Did you get stretch marks and varicose veins?

Of course I did!

Stretch marks fade after one year. You can get them on your back, belly and breasts. I have never been too bothered by this. Keep your skin from drying out and this will help. I did not get varicose veins until I was much older. These have never really bothered me, but are rather ugly. As they do not bother me (no pain) I am going to ignore them. I do think that exercise is important and keeping your weight within a healthy limit is important. NOTE: I said healthy, not skinny!