Suggest Treatment For Pain And Abnormal Vaginal Bleeding

Hi Im a 33 yr old mum of 3 children for 3 years I've been having problems pains where my ovaries are bleeding not when on my perionds but light and pains in my tummy I've been in and out the doctors and they say it's ibs lately with in the last two months the pains have gotten worse it there constantly I went doctors he gave me some tablets for ibs and told me to get a smear but I keep bleeding to I have to put it off I keep having to wee to lately and feel excausted I can barley eat but manage small meals and I've put on weight and I sometimes feel like Im going to faint. I was talking to my family and my mum had to have a histmatery at my age and I was an only child. Then on my dads side a lot off women has died at early ages through cancers mainly ovarian and breast cancers the makes where all lung cancers as you can imagine Im slightly worried and Im fed up with the pain and lack off sleep because of it so advice would be most greatful o and the pain is also in my back too