For a few months now I've been constantly hungry to the point where I feel sick and dizzy, but as soon as I smell food or put some food in my mouth I feel like I'm going to throw up, I eat enough to take the sickness away but not my hunger because I can't stomach it, meaning I'm in a vicious circle. I don't have an eating disorder I would love to put some weight on but can't. I've always been a small eater but this is getting so bad! Please help!