As my husband was helping me at my daughter's graduation yesterday, people were concerned. I think they thought I was fainting (it was very hot), so they wanted to bring me a chair, a glass of water, etc. We were just trying to get to the car, and I tend to go limp, so I'm a sight. What's the best simple explanation to people in passing? I usually say things like, "I have a muscle disorder." If the person stops to talk, or if it's someone I know, I might say, "I have a neuromuscular disease, myasthenia gravis. It's sort of like MS." Yesterday at one point I heard myself say, "Oh no, I'm fine, I'm always like this," which was probably not the best choice.

What's your favorite very brief explanation?

Abby