 [ Symptoms ] mystery illness what could i possibly have a fib chronic diarrhea vomiting and nausea i have been severely ill for almost a month now i thought i got food poisoning possible source subway avocado that looked an unusual shade of green about 1 month ago  have had chronic diarrhea 4 6x a day ever since it has gotten progressively worse and now within the past few days i have been vomiting after most meals i have been emitted to the er 2x for fluids one of those trips resulted in my heart going into a fib no history of heart problems in the past treated with cardioversion [ Disease ] unresolved itching is a truly frustrating symptom for all patients to deal with because this has been going on for some time you might want to get a medical evaluation to make sure you do not have a disease process that is causing the itching the fact that you have identified stress as a possible trigger tells me that while it may not be the source of your difficulty it certainly could be making it worse i would recommend that you look into stress reduction methods that are available in your area some schools and universities offer programs in stress reduction meditation yoga etc stress is hard on your entire body and could be negatively impacting other health systems as well as making your itching worse see what you can do about getting a diagnosis and try to learn to manage your stress levels