I think you should prepared to accept the reality that it will inevitably make any relationship or friendship you have more difficult, because other people feel the consequences of your illness as well.
I don't think 'turn off' is the right word, but like with many, many things that could happen to people (e.g. not very good looking, very arrogant, very reclusive) it will hinder your chances with certain people when trying to date them.
Though, and although I really hate how often this quote is used out of context, I would follow the: 'If you can't handle me at my worse, you don't deserve me at my best' advice.