hi there, at 33 years of age it is unlikely that you are experiencing premenopausal symptoms, you are not pregnant so along with weight loss
, irregular periods
and foul smelling discharge,it sounds ominous and you will require a thorough work up. Kindly get your blood workup done along with abdominal ultrasound
, a PAP smear examination and a gynac consult. It could be anything from pelvic inflammatory disease
to malignancy and so you need to be vigilant and get to the root cause. Take care.