B.G.
Sounds like you may benefit from an ultrasound. When I complained recently of longer, heavier periods my doctor immediately scheduled an ultrasound. It wasn't clear enough so she did a vaginal one. All possible problems are ruled out and I don't need an ablation. If I understand correctly, these problems can either be caused by illness or the early stages of change of life (perimenopause, yes at 38!). Instead of going back on the pill, I had my hormone bloodwork done and am now using a BHRT cream for the second half of the cycle with success. I think the doctor makes all the difference now. I have a very progress woman doctor who understands and keeps up to date with the whats available to treat patients. If you don't get the answers from your doctor on Monday, find someone else.
Good luck.