I think hormonal stuff can be complex and with psych and other meds and mental health stuff in the mix, even more so. Do discuss the issue with your gynecologist in January.

I'm experiencing perimenopause and am not quite yet 52. My periods are all kind of screwed up, but ovarian cysts and/or stress may be factors in my situation. I do have both. Sometimes I miss periods and then sometimes I get super long ones that go as long as two or three weeks. I do sleep quite well. I also take sedating antipsychotics (600 mg Seroquel total - 400 mg ER + 200 mg IR). IR helps better than ER to knock me out. ER obviously lasts longer than IR. I needed the IR added to substitute part of the ER because I was having some trouble falling asleep on all ER, but I attributed it to bipolar stuff (that WAVE theory)...and stress. Unlike you, I don't take hormonal birth control. I tend to have hot flashes/sweating a lot, but often wonder if anxiety plays a part. If I sweat a lot in a crowd of people (long lines/queues), anxiety is at least contributing or exacerbating issues.