Hello, I love your history. Thanks for providing great information. Whatever the last think you stated was cut off, so it is left as "I'm on..."
The only thing you left out was your sexual history. Are you sexually active/any new sexual partners/pain with intercourse/vaginal dryness?
Your discharge may be hormonal. It certainly sounds as if you are perimenopausal with the irregular cycles. As your estrogen levels decline, your discharge may change as the vaginal tissues thrive on estrogen. If you have vaginal dryness and pain with intercourse it is related to the decline in estrogen and the term is called atrophic vaginitis. This is easily diagnosed by physical exam.
Of course, if you are sexually active and with a new partner or your partner has been with someone else, you could have a sexually transmitted infection.
If you still have questions, feel free to ask. I hope this helps. Best wishes!
There actually is not a good blood test for perimenopause, it is best diagnosed by age and history. Given your pain, was an ultrasound performed? Uterine fibroids (benign tumors) are quite common and they can grow under the abnormal fluctuations of your hormones (and seen on ultrasound). If not, I certainly recommend one due to the pain. If present, the fibroids will gradually resolve after menopause is completed (no more estrogen production by your ovaries). The increased cramping may be due to the frequency of your periods, or of course the fibroids. If your bleeding becomes worse, or you can't handle the pain--fibroids are one of the most common causes for hysterectomy. Given your medical history, if it came to this I would recommend a laparoscopic approach for faster recovery, less pain, and faster mobility--minimizing risks of blood clots.
When you return to your physician to evaluate the discharge, they can look under the microscope (test is called wet mount) to look for abnormalities like abnormal cells, inflammatory cells, excessive bacteria or yeast. If the appearance of your vagina is pale and flat, it suggests atrophy. If your cervix appears inflammed, maybe an STD or bacterial vaginosis (not sexually transmitted). They can check for gonorrhea/chlamydia as well as repeating your pap smear to make sure there hasn't been a recurrence. Best wishes!