I have had a lot of trouble lately. They all got lice a month ago (might have been mites too). I dusted with pirmethryn and it seemed like it took care of it, but a few of them had warm swollen bellies...like water balloons. Well, a couple of weeks ago I lost a hen. She was fine in the morning, but by the afternoon she couldnt walk, we brought her in and she died that night. Another hen looked bad last weekend, brought her in, loaded her up on acv water molasses water, pedialyte. She had laid a shelless egg, and after two warm baths passed the shell, a rubber egg, and a load of roundworms. So I treated the whole flock of 9 with piperazine for roundworms on Monday. I thought I would be good to go after that, but they all have tight swollen warm bellies, and now my barrred rock is laying down and closing her eyes. I sprayed the coop inside with pirmethryn, I give them acv and molasses in their water, and they eat Poulin egg production plus. I dont know what else to do. Please help. I dont want to lose anymore of them, but I dont know what else to do.