Never ending eating disorder - my source of depression

Having fed my niece from when she was little, I thought I knew how much kids would eat at what age. But I have almost forgotten that by now. As much as I wouldn’t prefer my child to be obese, it is really heart breaking to have a thin child too. And with the way I have managed to put on weight, I really am on the edge of my nerves that I cannot make maya eat more and myself eat less. Last week, for the first time, maya ate like a normal toddler and I was over the moon. All I could think was, what I can prepare next to make her eat well. And she was fairing quite well too. Suddenly she had this fever and cold and she has gone back to be the picky eater she always is. I realize that apart from all the emotional problems I have in my family, this is the only thing that is occupying my mind all the time. Last week a friend of ours had come home and asked me if I didn’t eat well during my pregnancy, which I should say, due to various situations, I didn’t. and she said that is the reason why maya isn’t eating well now. I don’t know if it is scientifically true or not, but there is an overwhelming guilt since that time and I would give anything in this world to be pregnant again with maya, to eat right, to do everything right to make my daughter a chubby one. Having said all that, she is the most active, energetic and smart baby I have ever known. Like every other problem, instead of worrying about why, I need to work on the how to resolve the situation. Should practise on how to make maya eat healthy and more and me eating healthy and less!!!