Call Southwest and ask them to add it for you. Generally, DIY adding of a TT number to your RR account after-the-fact will *not* add the TT number to existing reservations (and consequently you won't get TSA PRE on existing reservations).
While you had stomach flu symptoms, your doctor most likely prescribed a diet that consisted of bland foods and increased liquids. The BRAT diet is a common acronym used to treat an upset stomach and the stomach flu, according to FamilyDoctor.org. BRAT stands for bananas, rice, applesauce and toast.
If, after eight to 12 hours, you have not vomited and feel like you can eat something, start with bland, starchy foods. The BRAT Diet. The BRAT diet is a guideline to help you figure out the best foods to eat when you have been vomiting. BRAT stands for Bananas, Rice, Applesauce, and Toast.