Hi and welcome to HCM. Thank you for your querry.
This is nonspecific symptoms and I cant tell you anything without more info. It can be nothing and anything. rectal cancer
can be ruled out by simple digitorectal exam or rectoscopy. If you notice blood in stool
and lost weight it should worry you. The same is with ovarian and pelvic disorders. Ultrasounds is at least what you should do.It is good that you are caotius but cancer isnt the first thing to think of. It can just make you anxious. Most common causes of your symptoms are benign and wilk pass by itself or with simple therapy. WIsh you good health.