8 months ago I bought 10 production red chicks; 1 died the next day, I figured stress. At about 3 months of age, I saw a couple of my birds had 'moco' (mucous) (respiratory illness, no vet to diagnose what variety), and treated the flock with the antibiotics recommended by the feed store / animal medicine store for the prescribed 7 days. After the round of antibiotics, fed some unsweetened yogurt mixed with their feed to restore their gut bacteria. I lost 2 birds to the respiratory disease. 4 of the remaining 7 of the flock were roosters and I ate them. Of the remaining 3, one hen started laying early, she was about 5 months old when she started laying eggs. One of her sisters started laying a month later, at 6 months old. The last sister has never laid an egg, and she's now 8 months old. I did a super-duper look her over and she seems healthy, but thin, her breast bone is pronounced and yet she weighs 3.7 pounds, slightly more than her laying sisters! Wherever she's hiding her weight, it is not in her breast meat. After bathing her, as she had a really soiled backside, I did a digital exam in her vent to determine if she has an egg stuck, and I'm uncertain what I felt up there, it felt like it might be an egg... solid. It was about an inch inside the vent. Her vent looks totally normal, slightly moist, and she ACTS like she's laying eggs including the "I laid an egg" song, but she never actually lays an egg. I noticed that at least one of the hens was pooping green, chunky yet very watery poop, and at least one other had normal poops...and although it's the height of summer here, the normal poops mixed around the yard with the not-so-normal poops made me think of worms. So... de-wormed everyone with what I thought was a 'one medicine covers all' worms medicine but it didn't help. Did more research, found out that the medicine didn't cover the cocci... so treated for that. Everyone's poop looks normal now but the non-laying hen constantly has whitish poop stains on her butt feathers (still), and I bathe her a couple times a week to keep flies down; she LOVES being bathed, and I'm using this bath time to treat her as if she's eggbound... lube her up, digital exam (I swear she poops in the bath every time, but at least now it's normal looking poop), and soak her well. She still has a hard something inside her vent, about an inch in, but it doesn't seem to hurt her. She's not exhibiting signs of swelling, she's doesn't seem to be suffering asceites, she doesn't have a prolapsed vent, she acts totally healthy, no drooping or missing feathers, no lethargy, no waddling or tucking in her head. No rooster to overmate her, no stressful situations, nobody picking on her (not even me, she comes running when she hears me enter the yard). Anyone think of anything I may have missed? I'm concerned that she may be internally laying and that someday I'm going to go out and find her dead. I'd post pictures if I had a camera; but I don't. Phones with camera are expensive and even the 'just a camera' options are CRAZY expensive here, cheapest digital camera I found on my last hunt was over $600. At those prices, a camera is out of reach.