My 24 yr-old son got pretty sick after going on cave tubing excursion in Belize in July. Has anyone else had this problem? It showed up 3 days or so after the excursion. His symptoms were loss of weight, stomache (no upchucking though), fever for first week, sore throat, & blisters near the one side of his mouth. We don't know if it was from water or Belize food after tubing. We think it had to be excursion, he was with us the rest of the cruise, and no one else in family is sick! He had a great time, but he's still paying for it (2 wks now). We're not trying to scare anyone, just seeing if anyone else had problem. We were in Belize on July 9. Thanks!