My DD 2 and a half has been sick for the last month with a viral. She has been tested for Whooping Cough and given antibiotics for mild chest infection. I took her back to the dr as she wasnt getting better who put her on another course of antibiotics because she has bronchitis (sp?)my question is since she has started the last lot of antibiotics (monday) and hasnt eaten since Saturday, she hasnt had a bowel motion since Sunday and my daughter has always had regular motions. I mentioned this to the dr and she didnt seem concerned. Should I be worried?