Dear Clio,
I just thought I'd add in an experience which might make you feel a little less anxious.
I've had symptoms as described by you and been very worried about them, exactly as you have been.
Anyway, I had a scan today and my ovaries and uterus looked normal. I'm going to have the bloods like you too.
I'm sorry you are so worried. I get completely anxious about every single symptom I have. Tomorrow it will be something else, I'm sure.
So, in short, Clio, I understand how worried you must be but, as other ladies have said, the backache and bowel changes could have any number of causes.
Lots of love to you and please hold on to all the positive stories here and the fact that your GP examined you and didn't seem overly concerned (she didn't rush you off for an emergency scan for example).
Not sure if that helps. My posts are never as factual or medical as others but still sent with love and concern, even if not tons of help to anyone! X