Hen not laying; lump in stomache

[Campine Lover]

My SLW hen, Penguin hasn't been laying. She has a large circular lump inside her (stomache area?). Yesterday, she layed a tiny tiny tiny egg! Like, a little bigger than a thumbnail! What is wrong with her? How can I fix this?

 

[Firearia]

Hmm, from what I've heard around here she's most probably egg bound. I'm not sure though because I am not knowledgeable on this subject, sorry.

Take her to the vet maybe?