I am 30 year old and married, not pregnant, not have baby. I diagnosed with pcos/pcod around 10-12 years back. I was treated with contraceptive pills like krimson 35/ diane 35 at regular time intervals as and when required. Lately doctor prescribed me the medication obimet to lose some weight. With all this medication my weight was normal before. From last 8-9 months I have stopped medication and my periods gets normal automatically. It's been now 8-9 months still it is regular but I have gained my weight by 5 kgs, so now I am 66 kgs and my height is 5.5 ft along with that I am facing severe hair fall from top and sides. I can't understand what is the problem and why am I facing it. I have done my blood test and everything is normal except vitamin d3. It was low. I have taken medication for 3 months now. Is it because of hormones or anything else? Can I start contraceptive and metformin again?