HI I WAS VERY SICK WITH VOMITING, DIAHOREA, SWEAT, HAIR

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I WAS VERY SICK WITH VOMITING, DIAHOREA, SWEAT, HAIR ON ARMS STANDING ON END, FEVER, OVER HEATING, MAJOR STOMAC CRAMPS. THIS 1ST HAPPENED AROUND MAY 2015 LASTING FOR APPORX 12-15 HOURS. AGAIN IN June 2015 SAME SYMPTOMS LASTING APPOX 2 HOURS AND AGAIN JUST A COUPLE OF DAYS AGO.. THIS LASTED FOR APPORX 2-3 HOURA. iT WAS THOUGHT THAT I MAY HAVE BEEN BITTEN BY RED BACK WHEN I WAS 1ST SICK, THOUGH COULD NOT SEE OR FEEL ANY BITES. ANY SUGGESTIONS AS TO WHAT COULD BE THE CAUSE