Please do not feel embarrassed. Your question is perfectly fine and very relevant.
The return of periods after 4 years of complete absence needs to be investigated. I suggest you see a gynecologist, get yourself examined. The bleeding may be due to menopause
and as a result a thinning in the endometrial lining due to very low hormone levels [endometrial atrophy in medical terms ] or may be due to a malignancy. If a patient like you walks into my clinic, I would also do a ultrasound
of the abdomen and pelvis and an endometrial biopsy
along with tumor markers like a CA125 or any other that you may have had evaluated before nephrectomy
to check for recurrence.
For the headache you must consult a neurosurgeon as again the recurrence of the primary tumor
needs to be ruled out. You may need a CTscan of the head done for this.
Hope you find it useful.
Thanks for using HCM.
Dr. Madhuri Bagde
Consultant Gynecologist and Obstetrician