Do others suffer chill like symptoms and sometimes nausea prior to a loose stool? Is this common? Also upset because the calcium carbonate was working so well and suddenly the last two weeks I have had a recurrence of my diaharrea just when I thought it was under control. I know that somehow magically at some point it correct itself generally. I can't explain this cyclical nature of this condition but it is so frustrating - esp since I am going on holiday next week and I need it under control!!! Therefore any suggestions for a 'quick fix' so I know my holiday will be enjoyable? Just to let you know, I do not take any prescribed meds for IBS, just rely on diet, exercise, calcium carbonate and sometimes immodium (very sparingly) as I do not like the rebound effect I get from it - constipation then diaharrea again often. Please give me any other ideas you might have so I can enjoy my vacation!!!Thanks for any ideas you might have.