His he going to school? If he is he might not be focusing because his sick.

No - you can skip any day you want. If he's vomiting, I definitely wouldn't.

My 8yo son recently started stimulant meds and is sick today with what seems to be a stomach bug (no fever) with vomiting. Should I give him his meds? He didn't sleep well so I would hate for them to keep him awake but it's a single dose of short acting. I have a call in to the doc but thought I would ask here also.