I have been at both ends of the spectrum.... underweight (eating disorder as a teen) and overweight in the last couple of years.
I discovered that my weight gain was partially due to PCOS, and that I had trouble losing weight because of that. But mostly it is because I have shit eating habits.
I am not doing anything to lose weight now, but when my baby is born (hence why I'm not actively tring to lose weight), I will do what I can to be a healthy weight. This will be difficult with PCOS, but I have to do it.
I have found since being overweight that I have less confidence in myself. I don't like what I see in the mirror. I don't like shopping for clothing. I don't feel attractive, no matter how much my partner tells me that in his eyes, I am. But it's more than that.
I feel heavy. I have aches and pains I never had before. I feel more tired. I feel unfit. These are all things that concern me more than what I don't like about my image. I genuinly don't feel HEALTHY. And this is why I want to make a change and why I want to lost about 20kg. (Though that number might increase dependant on how much more baby weight I gain). I want to be able to run around with my dogs, and in a years time - my daugther. I want to be able to have more energy. I don't want sore legs and back from carrying around the extra weight. And if I lose it, I have the potential to significantly help my PCOS, to avoid diabetes (which I'm at an increased risk at due to 1. PCOS, 2. family history, 3. weight), and to live a longer life and not have my weight impact on the life of my daughter, my partner or MYSELF.
For me its not about looking attractive (thats like a slight bonus prize). For me it's about FEELING BETTER, feeling healthy. Living longer.