I began with nausea, then vomiting and diarrhea five days ago. The vomiting lasted one night, some residual nausea, but the diarrhea continues. I felt I was improving yesterday, tried to eat a grilled cheese sandwich. Otherwise, just sipping on water. The cramping, watery diarrhea and nausea are back. No fever, some chills, a bit weak right now after a long bout in the bathroom. Should I try Immodium or let whatever it is run (literally) out of my system.