You look kind of green.
I don't feel so good. I am feeling sick to my stomach.
Have you had anything to eat lately?
I had fried shrimp and clams for lunch.
Perhaps the food was bad.
Perhaps, but I haven't felt well for a few days now.
Has anything been upsetting you lately?
My stress level is pretty much what is usually is.
Do you think that maybe you are getting the flu?
It seems to me like I may have caught a bug.