Not sure this is considered discriminattion. I've been fortunate with my NMO & have re-learned to walk. My sight came back, though not as clear. Looking at me, people don't see the constant neuropathy, tingling, muscle spasms & fatigue. My balance is not great either. I have people, even some close friends & relatives, asking me why I have a disability parking pass, why some days I have a cane....that I'm not disabled...what's my problem anyway. Even after trying to explain NMO, relatives keep saying, push, push, push yourself past your fatigue. Push past NMO fatigue is like trying to stop a hurricane with a desk fan.