Cin 3 on smear, hpv negative

Hi, I am just after some advice for a family member. She was cin 3 after a smear about 1 and half year ago.

She had treatment to remove the cells and following a test after they said the hpv test was negative.

Anyhow a few months back she was having alot of burning pain in her lower tummy, constant heavy bleeding and back pain. I was worried about this as she was also very lethargic/tired and not at all herself. She's not one for the Dr's or to complain but I eventually managed to talk her into going back to GP. 

They refused to do another smear as it's not time apparently. They did swabs for Infection which was clear, bloods etc and all came back normal. They have just said everything is fine and that's that. 

Its obviously not fine, so frustrating! 

Has anyone experienced this or have any advice? Cervical / ovarian cancer is in the family, I am very worried about her. I looked into getting her a private smear but I can't afford to get her one and neither can she.