I'm not on medicare right now, but I am waiting on a disability hearing. I've had people say the same thing: "What disability?" I've had people get on my case because my disability is not obvious, but some of these people who jumped all over me also had "invisible disabilities." I don't even talk about it anymore, but it's different when you have a doctor visit and the doctor is making an issue of it. I mean really, it IS none of their business--even if they're the doctor. Their job is to be the doctor, not your judge or case worker.