There are a number of things that can cause bleeding. She should see a Family Physician to get a complete physical.
The most likely cause of the bleeding and fatigue and hair loss is THYROID problem - hypothyroidism - or an underactive thyroid can cause weight gain, irregular periods, hair loss, dry skin, cold intolerance to name a few things.
She should see a physician and have a physical and some lab tests including a thyroid test (TSH)
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