I'll be honest, what I used to do is date them a few times and see how things generally go. Explain your illness, but don't bring the bag into it just yet. As time goes by, say a few months, then just say you have one due to illness, etc. If they begin to fade away, think to yourself, do you actually want a woman/man like that anyway? If they can't be there for just a small bag, would they be there on your death bed? End of the day, it's personality that makes a woman like you. I think I'll be honest, my body is sooooo bad with a moon-shaped scar and a bag to go with it! Go to the gym to gain confidence and transform yourself. What overpowers your bag mentally and physically, you'll be more confident and overcome the bag like it's nothing whatsoever. I'll be honest, I've been known as a player haha! And I've never once known anyone to be bothered by it. The bigger the problem you make it, the bigger problem they will think it is. Just tell them in total confidence and they will get the impression that it's a small thing. Tell them crying and they will be frightened and likely to run away. Sometimes you have to be arrogant. I'll be honest, I'll pulled a blonde bombshell who everyone looks at in the gym. So if I can do it, what says that you can't do it? Confidence is key. :)