Do your kids have spring fever?

Although I thought it would end when spring break was over, it seems like our 5-year-old still has spring fever. He's having a lot of trouble focusing and especially listening. I thought maybe it was just him, but at soccer practice last night our entire team couldn't focus at all. Usually I can get them to focus for one thing for five minutes at a time and consider that an accomplishment. Not last night. Are your kids still "suffering" from spring fever or is it just the kids I seem to run into?