W have a 4 1/2 month old Cornish X hen and rooster. Our hen started laying eggs about 3 weeks ago. The first 3 or 4 she laid had thin shells. Now she's laying some nice brown ones. I checked her nesting box when I got home from work today and she hadn't laid an egg which surprised me because she lays pretty consistently. She wasn't acting like herself. She was very quiet. Usually she's just talking up a storm. My husband and I left for a bit and when we returned she was walking really slow and she was puffed up. She walked away from us and stopped and just laid an egg. The shell was thin. I went in the house for about 20-30 minutes and then went outside to see how she was and there was another egg. Again with a thin shell. She did not lay them in her nesting box which was strange. After she laid the eggs she started acting like herself again, striking up a conversation with me and my husband. I heard that hens don't lay more than one egg a day. Mine laid two within a half an hour. Should i be concerned?? Is there something wrong with her? Thanks in advance!!