Today she laid what looked like two sacs of some yolk and mostly egg white. It made a giant mess in the nest box - yuck! Maybe she's being affected by age...she turns 5 this year, do you think that could be a factor?
The egg she layed was a double yolker. When my girls first started laying I had about 6 of them in one month but they eventually regulated themselves. In your case it is most likely due to age since she is laying all sorts of funky eggs lol