Sarah, how is he now? With Lindsays' most recent tummy bug just before Christmas, it started out with him being lethargic and a bit headachey, but otherwise fine, and then on the 3rd day when I took him to the Dr because he got really lethargic he got the runs, then on day 5 he got vomiting. Fingers crossed it is just the heat and not a tummy bug though - it really drained Lindsay.