What is that about crypto in your flock? Is that cryptosporidium, and has that been found in the upper respiratory tract or intestines? Have you had a death from that? Gabapentin is very much going to make her sleep. Are you still giving any calcium? I know you said her calcium level was normal, but it might help her egg shells or to pass any egg. You can get enrofloxacin online at Jedds.com. Some vets will prescribe it for hens with salpingitis or reproductive infection, but some will not. It treats a lot of different bacteria, and especially with reproductive infections.