Our 10 month old DD has had a cold and developed a temperature at the weekend. Since then her temp is back to normal, but she has gone from being very active (sitting up; crawling; pulling herself up) to just lying down and being very lethargic and sleepy. She seems uncomfortable sitting and cries when you lift her legs to her tummy to change her nappy. We've been to the GP with her twice in the last 5 days and they just tell us to come back if there's no improvement. We're going to take her back to the GP again tomorrow, but does anyone have any idea on what this might be??