J.,
My daughter had some kind of bug like this last week. Fever, throwing up and having loose bm. She had this for about 5 days (Sun-Thurs/Fri). I thought it would be just a day or two, but she woke-up a few nights since she had gotten sick in her bed as well. She ended up having a bad fever on Sunday and had a seizure (don't worry, my child has seizures when she has a spike in fevers. This is not due to the bug!). We went to hosp which is where dr's told me that a stomache flu was going around. I got it Wed. and didn't feel better until yesterday w/same symptoms. Hopefully my husband and 9 month old will not catch! It was miserable! Good luck to you! Hope she feels better soon!