Weight issues - advice needed

I weigh 75kg, 166.6lb or 11st 13lb sometimes 12st. I  lost 3.5 stone last year from being ill and since then I have issues with food. If I eat too much I throw up - a lot of the one because I've made myself because I feel like I'm fat. I hate the way I look. I feel like a whale and all the stomach softness. I try the gym etc and nothing seems to help me. What I want to know really is what does everyone weigh? What's the ideal weight??? My OH is happy with how I look but it's not him it's me and my mind and I know this so I need advice on what everyone weighs and what's 'right'.