I have had diarrhea for over 24 hours and have used the bathroom at least 20 times and its the consistency of water. what could it be and when do i need to see a doctor? what should i take?

Diarrhea: Diarrhea can range from very mild to severe. For severe diarrhea and associated symptoms, i would recommend going to either the emergency room or urgent care clinic. Worrisome diarrhea generally would include symptoms such as: high fever, unrelenting diarrhea, severe abdominal pain, blood or mucous in stool, dehydration, dizziness, or accompanied vomiting. When in doubt, go check it out.

Virus or bacteria.: Likely causes: viral or bacterial gastrointestinal infections or food poisoning. Most of the time self limited. Be concerned and see a dr. If dehydrated, can't drink fluids, light-headed, fast heart rate, low blood pressure. Also if severe constant abdominal pain, high fever, persistent vomiting.