Hi welcome to the health care magic You might have here according to history mild colitis like infective condition... Take small meal with frequent interval... Maintain hydration by lots of water... Avoid excess spicy foods and fatty meals If needed suitable antibiotic like that for bacterial overgrowth rifaximine might be prescribed... If diarrhea continues than than drink water with ORS.... If symptoms increasing than USG like investigation done for further work up Green leafy vegetables and fruits consumed more Take care Consult physician for examination