Corn health

[Wizwise2000]

I fed my 03' corn a small pinkie yesterday at around 3:40pm.
This morning when I checked on her at about 10:15am, I noticed in one of the corners what looks to be white dried stool, and a spot of blood. The spot of blood is about the same diameter
of the stool (small, about 5-7m). Did she digest the food too quickly? Or is this a serious condition? I'm worried about her.

Thanks in advance.
Shane