How do you explain to others the emotional and mental toll having an invisible illness creates?

Hi Calie! It's not easy, that's why we like to say you "don't get MS until you get MS". I mostly point to the words of others (or even my own words these days), I find example and direct folks to read about other's experiences. For some reason, I think people understand better when they read about others and not the person in question. It's always been easier for me to say, Hey, I'd like you to read this, it really helps explain what I'm going through.