@talespin, you are correct, if the disease is not painted on your face, your out of luck. A friend of mine woke up to " drop foot", doctor sent him to a podiatrist, "dear friend, I think your doctor should have sent you to a neurologist!" my words scream in his ear. "My wife think's I am faking it, the doctor said it's due to stress!"
"Drop Foot is not a stress related symptom, (I keep my own wild speculations what it might be, to myself) after visiting two General Practicioners, his wife yelling "Your faking this, you are faking this!" with haste I drove him to a neurologist in Santa Barbara, and he had a rare nerve disease! I am not a doctor, I knew "drop foot" was a nerve related disorder, how in the Hell could two MDs, think to send him to a foot doctor ( less training than md), how can this be? I feel for anyone with a disease that inflicts havoc on your life, my friend has repeated this "You really find out who your friends are, when you become chronically ill!)
His doctor contacted the C.D.C. for a strange amount of occurances in our local area, C.D.C. sent a field doctor for further research, I guess he was not faking it? His wife dumped him for another man, now he is alone.