hi doctor, i m a 29 year old female and i m married ,3 weeks ago i started having stomach aches and feeling like vomiting but nothing came out ,it later resulted to a session of diahorrea which lasted for a day i went to see the doc and i was given ORS and flagyl,i was relived for some days but the cramping later returned with grumbling of the stomach this time, i became constipated and when i have a bowel movement,it is usually acompianed with a lot of mucus and undigested food particle(food that i have eaten two days before),just last week i started urinating frequently like every hour and the urine will give a tingling effect, i urinate like up to 8 times daily, i have been to the hospital for a blood test and stool culture but the doctor found nothing, plese what could be the problem?