What Causes Pain In Eyes Along With Loss Of Appetite And Diarrhea?

eyes hurt as in both eye sockets--a flu like pain as in a headache lack of appetite--can eat crackers, drinking lots of water and some milk tried chicken noodle soup and oj and had forceful nausea and diarrhea all at same time later in the afternoon had body jerking for about five minutes have not taken fever--have had some sweating as in possible fever breaking am 71 year old male