Could anyone tell me if IBS and stress can effect the imune system??I have sufferd with IBS for about 10 years but 2 years ago my symptoms got much worse after a course of <Cyprofloxin> and still hasn't really calmed down since, During this bad spell I have also been bombarded with X-rays includeing 2 chest x-rays a barium x-ray and a <COLANGOGRAM> bile duct CT-skan....It seems like since my symptoms have got much worse that my imune system is very poor!! I catch far more colds and flu and seem open to any virus's my children may bring home from school, Even now I have a sinus problem which has lasted for weeks and I only have to be in the company of someone who has a cold or virus for about 5 mins and long behold I catch it....I have spoken to my Doctor about this but all he keeps saying to me is take some vitamins with Vitamin C which I have now been doing for the past Month but I still seem very poor at fighting any infections....Any Help Would Be Much Appreciated!!