Hello. Welcome to hcm
I first apologize for inhuman behavior of medical personnel.
Ruptured ovarian cyst
has to be managed efficiently and now as you have been treated. It is absolutely necessary to repeat ultrasound
scan. As you have black stools,it means you have bleeding points in your intestine. It might have come as you had a ruptured cyst and your body was under stress
I advice you to consult the doctor(not the same one though!) soon as you need to be evaluated for follow up of cyst and delayed periods. If you continue to have black stools,endoscopy
has to be done soon to stop bleeing points(if any).
All the best