I have been and my young son also been quite ill this week with intestional problem..I had lots of mucus and blood and cramps etc , nausea and everthing that goes with it and my son has been very miserable (he is 15) with severe pain every time he tries to go..the doc phoned in flagyl for us as he suspected tainted food or something and also anti spasm med for my son (so far no ease in pain with the pills)..this is awful..I have had this 5 days now and son is on day 3..anyone ever use flagyl and does it work??I also heard it causes bad side effect???thank you for any inputkarenps have any of you ever had a intestional bug that was bad like this before?i also have ibs