Oh, that explains a bit more.
So she did pass a lash egg? Salpingitis is inflammation of the oviduct, so possibly some of the discharge you see may be from this condition.
It's not uncommon for a hen with this condition to stop laying due to more lash material impacting the oviduct and/or...
Hard to tell if that's Vent Gleet or just urates accumulating below the vent.
Is there a strong yeast smell or more of an ammonia smell.
Your hen has a bit of a distended abdomen, but with feathers trimmed the abdomen can look a bit larger.
In the other thread looks like she had poop with...