<s>[INST] hi I got baby4.5 month she had watery stools for 2.5m with strings poo color tacky haven t started weaning yet it doesn t look like worms, but am not doc so I wouldn t know, she been shooting milk back for awhile doc in hospital didn t wanted to do intolerance test cos that s what we been suggested from aptamil [/INST] Dear use rat first I would like to tell you that vomiting and diarrhea is very common problem in infants, and you need not worry about that, but you should do simple steps.......vomiting and diarrhea may have more than one cause but the most common cause in that age 4.5 month is viral infection of the intestine ....viral infection causes severe watery diarrhea with vomiting and may lead to complication as deny Chat Doctor. .....deny </s>