I tend to not interact (intentionally) with drama seekers or people who seek excuses for their own shortcomings. I wouldn't call out a stranger, but if someone in my circle started faking a disease I would talk to them about it, and depending on what happened, would distance myself. I find it really unattractive to have an "it's not my fault - there is nothing I can do - it's just the way I am" attitude about just about anything. I don't like to surround myself with people who make excuses, but rather people who find solutions and do the best they can with what they have been given. In my experience, people who actually do have the diseases listed do not use it as a crutch but actually do what they can to avoid the symptoms. People who want an excuse play up their symptoms and don't want to find a solution because it takes away their excuse.