hi i have had ibs 4 about 6 months, and 4 6 months i have had colds sore throats just feeling unwell.i have had blood tests and all is normall i have an anxiety and dep problem and taking aropax 4 that.i am having enough of a problem with the ibs ,but colds in the summer is not normall 4 me.dose ibs lower the immune system?.the doctor said gladular fever may have been the problem but could not be positive and 6 months is along time 4 gf. any feedback would be good thanks