Menstrual period for 20 days. For work.

I am having abnormal bleeding for last 20 days. I had pause MF for 5 days and still continuing and the bleeding flow has decreased however it is still there. Last month I had periods after 21 days only for 2 days and then it stopped and this time I am having prolonged bleeding. The bleeding initially was not very heavy .. needing to change napkins twice daily. Now the flow is hardly there after having pause mf but it is still there . The blood is watery and liquidish. I had undergone thyroid, rbc and prolactin and it came as normal minor anaemia and low haemoglobin. Recently for last few months I have sedentary life with hardly any walk or exercise. I had been on hormonal pills for three months 5 months before and my cycle is usually normal. I had urinary tract infection before this and had taken antibiotics, urispas for 5 6 days. Please advise course of treatment. I cannot undergo usg right now as I am traveling for work.