Hi, your previous pattern was typical of menopause
, i.e. decreasing frequency of periods, but the current pattern needs investigation to rule out pathology. You should go to a gynecologist and request a clinical examination & trans-vaginal ultrasound
scan to make sure all is OK inside your genital tract. If required he/she may take biopsy
of your uterine lining to check for any abnormality. Please don't take tension but get yourself checked. Take care.