Oh dear. Do you think you'll cull her soon if she begins to show symptoms?Yeah, my first batch were/are all ISA Browns. Ran, the one pictured, is the only one that I lost to illness -- three others vanished during the day, and I still have two sticking around.
One of them has a rock-hard, swollen abdomen, but she's acting perfectly fine. Maybe a little sleepy during the day, but her biggest issue is how back-heavy she is from whatever's growing inside her abdomen (probably more salpingitis, honestly). Poor thing can't flutter very well.
I agree it's probably salpingitis or one of the other reproductive issues. Those are all too common in RSLs.