Do you think they tried a D&C, but failed? Did you read the description of what they did in MyChart? (My gyn oncologist doesn't communicate much with me directly, but he does write detailed descriptions of procedures in the chart, where I can see them.)

Can you go to a different doctor? This one doesn't seem to be making progress toward solving your problem. And you shouldn't have to deal with a doctor who dismisses your side-effects.