yesterday morning, I was standing in a large line for a tradeshow and had to have a bowel movement . After a few minutes, I began to fell dizzy, sat down, then started sweating profusely. My husband said that I looked pale. this went on for about 15 minutes, then I was given a bottle of water. I felt much better, then found a bathroom in the venue. Had a couple of visits with very loose smelly stool .