do I need therapy? please comment

I'm adding this anonymously because I'm so ashamed. 2 year ago I weighed almost 300lbs. Now with dedication and working out I weight 148lbs and I'm 5'8". My husband is very worried because I weigh myself everyday. I hate myself after I eat. And sometimes I go days without eating. He says I'm under weight because of my height but I don't think so at all. I want to be 120lbs. We recently started TTC and we both fear if I was to get pregnant I would hate myself even more with the weight gain. All We ever wanted was a family. Please no rude comments. Any advice ladys?