This is interesting, especially the vicious circle bit.
SSRI's can cause weight gain. Some times rapid. Not something a person already depressed needs. It doesn't help that media portrays healthy people as very skinny. It isn't true. Unless you are sick a small amount of fat is fine, and is it really fat. It could be water, with all the salt in food.
Now obese is asking for trouble, but can a person help it if they don't have the information to prevent it. And then there is thyroid.
Be informed and do something about it.
Me I'm happiest under 175 lbs. but will accept under 180. But then I've lost height due to fused vertebrae and artificial knees. 5 inches in fact. I used to be 5'11" and as heavy as 230 lbs. But it was mostly muscle and I worked hard every day.
I have to admit that the weight affects my self esteem more than anything. But it is a health thing too in an Arthritic over 60 years of age.
I don't sweat it though, happy is more important. And I do fluctuate.
Davit