Recently had a CT scan is it possible for a remarkably thickened sigmoid colon, bulky uterus, and ovarian cyst over 5cm to be related? Concerned

Guessing. This is hard to call form just a description of CT, not knowing any other clinical facts. Can say: 1) the bulky uterus is 100% unrelated to the other findings, the thickened sigmoid "may" be related to the ovarian cyst or vice-versa. A doctor who knows your whole history and exam could answer these for you, can't say more online. Good wishes.