Ow?

Crashed today and smashed my head. It hurts. Anybody know how to tell when the styrofoam of a helmet is spent? My helmet is maybe a month old and I'd hate to spend money on another one, but I guess it's better than any more brain damage. If I don't wake up tomorrow an somebody look after my dogs?

In other news I'm in the lead in the 30+ and 35+ classes. Wee.