My nose started running while sitting on the tarmac and waiting on a mechanical delay IAH-MCO on Thursday as part of MCO-EWR-HNL-IAH-MCO.
Today i'm full blown sick with a yucky runny nose and congestion and such.
If you don't feel fine tomorrow then i'd seriously consider not going. How do you react to dayquil and such? Also, airport stores wont have the "good stuff" like old-fashioned pseudophedrine.