Worried about Symptoms - always had heavy and painful periods, but I've just had bleeding that lasted for 7 weeks

Hi everyone, 

 Have been googling a lot about my symptoms then found myself really needing to talk to someone who may have been going through or through the same thing. I'm 43 and really all my adult life ive struggled with heavy and painful periods but always just put up with it thinking thats just how things are for me. But recently i started bleeding and it went on for around 7 weeks with pain, in my pelvis, lower back and legs on and off. Its pretty much stopped now. I spoke with my nurse who was great and referred me for a ultra sound which is next Friday but im so worried. Ive had symptoms like changes in toilet habits and bloating for a long time. Also suffer from terrible heartburn but that has strangely stopped recently.

Just wondered if anyone else has had these symptoms and is there anything else i should be doing or asking my nurse for other than waiting for the scan?

Thank you for reading x