Thanks, Clive. I wasn't sure. Would the following sentences also have been acceptable?
"Being a proud person, I know I would probably not want to be seen when I'm in pain if I had such a disease."
"Being a proud person, I know I would probably not want to be seen when I was in pain if I had such a disease."
"Being a proud person, I know I would probably not want to be seen while in pain if I had such a disease."
And how about the other sentences (the ones that begin with "I'd rather".) Are they also correct? Please explain.