If your hen may have an internal broken egg, she will also show signs of distress, oozing from the vent, and possible vent pulsating.thank you kartking22,
I did read up on gape worms, but my girl doesn't seem to have those symptoms . the only thing she is doing is showing stress when she tries to lay an egg and she seems to be breathing a bit loudly compared to my other hens.
i don't believe she is egg bound ?