Hello. I have a barred rock that is 22 weeks old. She's normally my loudest and most energetic. I went out this afternoon and noticed she was sitting by herself and didn't come running for scratch. I watched her for a while and thought maybe she was getting ready to lay her first egg. Then she slowly walked over by us, checked out the scratch and walked away. I picked her up and sat with her a while. She kept falling asleep. I checked her vent to see if she was egg bound and didn't feel anything. Just in case I gave her about 1/2 a Tums and set her in a warm bath. I also gave her a 1/4 of an aspirin. She seemed a little better so I put her back outside. Now she's just sitting by herself again. Should I be worried? What else can I do?