Quoting Bri An Brad Fitch:" Did it harm the baby in any way? and did it heal?"
my doctor put me on bed rest for a week, and yes it did heal. i actually talked to my doctor about this problem specifically yesterday at my appointment. She said there could be various problems such as your uterus muscles expanding or stretching and that could cause discomfort also. my problem was the tear in the placenta and slight internal bleeding. all is well now. just stay off your feet for a few days and see how you feel then. or just go to the doctor and request a sonogram because your concerned. its better to be safe than sorry.
hope this helps u