Hi,
You sound just like I did a month ago!!! Mickey was soooo sweet for the first few days... and then YES.... he turned into a little monster! He was biting, whining, barking, growling..... you name it. I paniced at first!
Someone on YT posted this article that I came accross... Here is the link...
http://www.shirleychong.com/keepers/archives/bite.txt
Read it! This article gave me some hopel, and I think the method really worked.
And, just like the others said - chew toys (We give Mickey Bully Stix, and ometimes Flossies (he tends to rip through the flossies pretty quick though), and consistency! She will learn to behave!! She is a baby, and she is teething, and biting is how they know how to play.... just remember that. Mickey is 17 weeks now and MUCH better than he was at 11 weeks. He still has his bad days here and there, but the days are mostly good. My little sweetie is back! Hang in there....!!!