My Girlfriend has symptoms of feeling painful facial swelling, with some being visible in cheeks under eyes, burning and swelling of eyes, a constant whistle sound in ears, weakness, and slight nausea. Feelings of lethargy. She has not had any exposure to the sun or heat, no known exposure to chemicals or allergic substances, non smoker, no drugs or illegal substances. No known insect bites or plant exposure. Has taken Tylenol and Diurex after symptoms persisted, 20mg Melatonin approx. 16 hours ago for sleep, taken daily. Suggestions please?