After returning home to Vero Beach from six days in Atlanta, I warmed a cup of coffee in the microwave. It was too hot and absentmindedly I added about a tablespoon of water from the fridge faucet. Later, I poured a glass to drink but noticed how dark and murky the water was. Since then I have had diarrhea, some nausea, and pain. It has been at least 24 hours since my diarrhea began. I had had pink and chocolate (from cherry chocolate ice cream) discharges. All day today, I have been drinking bottled water. Now the paper when I wipe is clean but bright red. Could that be blood? and what should I do next?