Hi welcome to HCM.... Noted you have diarrhea since 3 days approx. So now start the proper treatment.... Take ofloxacine plus ornidazole antibiotic for 5 days ... If vomitting troublesome take domperidone ... Now meanwhile hydration has to be maintained.... You might lost pottasium like electrolyte that can lead difficult walking by affecting muscle.... If needed arterial blood gas analysis might done to rule out acidosis... Take lots of fluid with ORS.... Banana also good in replacing lost pottasium .... Cooked oat meal help in soothing stomach... Take small meal at frequent interval ... Maintain energy.... Before starting antibiotic rule out typhoid by blood culture.... If still after 3 to 4 days symptoms not resolving then stool culture and microscopic examination done with USG to investigate further.... Hope your concern solved. Take care... Dr.Parth