Im sure she didnt mean to hurt u hun, she might have just been doing whatever she can to get all her frustration out. When they're teething they do get so angry, lily was screaming in mothercare today wen i was doing her mum, sooo unlike her, but shes got 2 still with a bit to come through.
If she hurts you again, just say 'NO' in a stern voice, I think they get to learn its not aloud, even if she doesnt understand now she soon will!
I know what you mean tho, when lily kicks me, I get so upset, how could she kick her mummy!!!
Hope your ok hun. x