I self-diagnosed gastroenteritis on Sunday because I had all the symptoms: Not being able to keep anything down, constant diarrhea and fatigue. After a day all the symptoms went away except for the diarrhea, it is now Tuesday and I'm spending half of my time on the toilet. All of a sudden I also got this ball of phlegm in my throat that inhibits me from singing. I was just wondering what my plan of action should be. Thanks for your help.