My wife is 45 years old. Weight about 55 Kg. Two children both by cesarean section (Dec 1997 & Jan 2003). Tubectomy done in Jan 2003. Hypothyroid patient for approx 5 yrs now (on 75mcg dosage of thyroxine). Recently underwent ATT treatment from Dec 2014 to July 2015 for Pleural Effusion. Since last 20 days heavy menstrual bleeding with about 1 inch diameter clots intermittently. Some days it subsided but spotting was still there. USG report says uterus anteverted & normal size. Normal myometrial echotexture. Endometrial echo central & is 8.5 mm. Ovaries normal. No adnexal mass. No collection in pouch of Douglas. Please advise.