Cervical incompetence

I am 41 yrs and this is my first baby. I was identified with cervical incompetence at my anatomy scan last week. I am 21 weeks now . Dr put me sutures for safety to treat the internal OS condition. I am very much worried and I have been advised for complete bed rest... anyone else experienced this or come across ? Pls give ur advises .. shall I walk to toilet at least at my home?