Hi everyone....I need some help with one of my chicks. Here's the background: I have two red sexlink girls. I got them on April 29th at 1 week old, so that makes them nearly three weeks old now. Up until today, they have both been eating, drinking, and pooping just fine. This morning my husband and I noticed that the smaller of the two, Stella, was very week and her vent was totally crusted over. We had previously washed her butt off once before. I cleaned her vent again this morning with a wet paper towel and made sure she was totally dry before putting her back in her cage. Since then, she has been vacillating between laying on her side twitching, making me think "ok, this is it," and standing up eating, drinking, or basking in the heat lamp. I have no idea what's going on or what to do! BTW the way she's lying down does NOT look like resting...it looks like she's at death's door and she never did it before today. As I said, she looks and acts very weak and also seems to have difficulty balancing (could just be weakness). Her eyes look fine, but in addition to a dirty vent, one of her nostrils looks crusty. She is eating and drinking, and apparently pooping because her booty is dirty again since I washed it this morning. This is my first experience with chicks, but I have had pet birds before and these were never good signs for me. I am trying to keep her vent clean and keep her warm, and I've tried feeding her a little scrambled egg at my sister's advice (she's had chickens for years). Can anyone take a guess at what's going on? Every time she looks her worst--lying on her side, twitching her legs, etc--I prepare to lose her, and then five minutes later she's standing and eating. One last note: both girls--the sick one, Stella, and the other one, Blanche--were the same size when we got them. Now Blanche seems twice Stella's size. Stella kind of reminds me of a runty puppy, and still looks like a chick, while Blanche is starting to look like an actual chicken. Don't know if this is important, but I thought I'd include it just in case. Despite the size difference and Blanche's pushiness, Stella has always managed to eat and drink. Sorry this is so long but I really don't want to lose her if I can prevent it!!