for about 2 and a half weeks now ive been feeling like i have the flu. tired, very achy and extremely weak. recently ive also began developing alot of hair loss as well as mouth sores. i have never had a very good immune system but i am usually quite healthy. i am an 18 year old female and i have a family history of many cancers, diabetes, as well as heart disease and autoimmune disorders. anything you can think of would be so much help to me.