I have a 2 1/2 week old chick who isn't growng like the others. It also has a large crop and when you kinda squeeze it it smells terrible and makes a bubbling sound. I have it in the house since I noticed yesterday it was sluggish and 1/2 the size of the others. I just don't know if its sour crop or impacted crop. I used a dropper and got it to drink some water mixed with olive oil and vinegar. Any other suggestions.