Are the school aware of your anxiety issues? If not, then it is unfair for you to expect them to make allowances for it. They may just think you're uninterested in learning or participating.
All teachers wish to actively encourage you to do well, and if they see you sitting at the back of the class clutching your answers, they probably just want to make sure you're doing okay - particularly if you're someone who struggles with the subject.
Bullying is a strong word, and it's impossible to say what your teacher's intentions are, but speak to her about it, or send her an email if you can't do this. If she knows your situation, she will be able to handle it better.
If she continues to make you feel umcomfortable then that's another matter, but at present I honestly don't think she knows enough about your situation to decide upon the best way to behave.