49yr old lady after 3 days stomach bug with cramps and diarrohea, no solid food, now has constipation, gas tiny streak of blood x1. worried ?help

Diarrhea: I would start drinking an electrolyte solution, such as gatorade, and not the diet ones. Does constipation mean hard stools or no stools? Also, try some soup for some solid food. If you develop vomiting and abdominal pain and still no stool see a healthcare worker.

Gastroenteritis: It is not unusual to skip bowel movements for a few days after having had a lot of diarrhea. A tiny streak of bright red blood on the paper or stool is generally not serious and is caused by a slight anal fissure or hemorrhoidal irritation. If the blood is heavier and mixed in with the stool, an examination by your physician is indicated. The constipation will correct itself with normal diet.