About the lock free, living, it's acceptable when one lives in a home with a child that is prone to destructive rages. Adequate boundaries involve knocking if doors are closed.

About OP, an U/s sounds serious, hopefully they find the cause to your condition considering that you are so young and have never conceived a child. Sometimes stress can cause that.

I agree about kegels, I needed to learn muscle control from the tender age of 6, after falling onto a bike crossbar.

Hopefully your mom and you are working together with a therapist?