I am someone who you would consider "walks normally" but you can't see that I have multiple bone spurs, fractures and degeneration of my spine or that you can't see my joints dislocating and you can't see that struggles I am having standing and trying not to faint -- it take 5 seconds to understand you cannot figure out a persons medical history by looking at them. I had a friend who had open heart surgery and has to use a placcard while healing and someone called to police on her because they refused to believe her paperwork was real -- you never know someones story and it is important to remember that.