and now it won't fire.

I feel sick sick sick. I have the Nikon SB600 and I was getting my bag out of the car after a Senior Shoot this a.m. and forgot I had my bag open and it went flying.

I seriously feel sick. Thank God it was just the speedlite and not my lenses (my camera was around my neck). AHhhh. Anyone know if I can replace the bulb, it turns on, the bulb just doesn't fire, it clicks like it's trying to but doesn't pop if that makes sense. I was hoping to buy a new lense in a couple of weeks but it looks like I'll be purchasing another speedlite. Ahhh.