Hi froghub! Just checked my PMs, I'm glad Xavier and Monster already advised you! I really hope Trixie is just fine.
I've only ever heard reference to a pacman bleeding from the nose once, but I can't remember where. The, the one thing worrying me about this is generally crickets and most insects dont have red blood, they usually produce a greenish-brownish goo. I wish I had more helpful advice, but Xavier and Monster are right, now it really just comes down to keeping an eye on trixie. It sounds like he/she is behaving normally, which is good. Good luck!