Yes, if you are over 16 then you can go and see a GP on your own. In the meanwhile, talking to someone can really help, perhaps a close friend or relative other than your parents. With your bulimia, accept that your body shape is determined in part by genetics, and you may never have a totally flat stomach. Even if you are very thin, your internal organs will give a certain roundedness there, especially after you eat and if people in your family tend to store fat in the midsection.Remember, you are beautiful the way you are and you are not alone, you will get through this!!