I was out to dinner with my mother in law tonight, after dinner she said she felt sick, like she could throw up. She got a blank stare in her eyes and face, she got cold and clammy, speech was slurred, she did throw up alittle. we called the ambulance, they came and checked her out, by the time they got there she had regained everything and was talking clearly again. She wouldn't go to hospital but said she would call the dr. first thing in the morning, what do you think caused this. She did have a colonoscopy on this past Monday and yesterday had to put her dog down, so she hadn't been eating much at all