Yesterday I saw my chicken throw up like 3 times, is it normal? She's been acting normal eating, drinking, pooping too and her crop felt normal to me yesterday. Today I've noticed she has been drinking a lot of water but don't know if she was drinking a lot because it was hot today. I felt her crop in the morning and it was empty I'm guessing that's normal. Could it be sour crop? And if it is natural remedies? And how do I know if she's better?