Why am I so nervous around my girlfriend?

Because you care about her, and that's a wonderful thing! If you didn't care, you wouldn't bother being nervous.

You are probably so nervous because you like her. It's alright to be nervous. In my own experience, if I am nervous around someone I will go ahead and tell them that I'm feeling nervous. Usually they can empathize or they may be feeling the same way.

It looks like you have stress around your partner. Could you give me any additional information about how you feel?

Because we are always feel nervous around the people we care, we want to make an impression to them and show them our best sides :)

That depends, what is the nervousness? Is it because you have overwhelming feelings? Or is it because she makes you feel stressed/anxious/nervous about yourself? The two feelings are so different and should be treated as such. If its a positive nervousness then it's just because of feelings and it's perfectly okay. Otherwise... perhaps you should reconsider the relationship.

You may feel the need to impress her but don't know how to. And because you don't know how to you feel nervous.

Maybe because you love her and care about her, caring about someone that you feel nervous about saying something that will make her feel upset, angry, etc.

If you know someone well you never feel nervous, so that could be a possible answer to your question. Talk to her frequently it will work. Know about her, whatever you do keep the conversation rolling..

This really depends on the situation. You should have a talk with a listener so they can help you in more detail. But generally speaking, this often comes from a fear of losing them or low confidence - a fear of doing something that might drive them away. It sounds a lot easier than done, but fear has no place in a relationship. If she is with you then she likes you for who you are, don't be afraid to be yourself and don't worry about losing her for no reason. Remember to communicate as this is key to a healthy relationship. If she has done something specific to make you feel nervous then discuss this with her in an open and honest conversation.

If you're nervous around your girlfriend you probably care about her very much and that's a good thing! You probably want to present yourself in the best way possible and want to impress her, but consider that your girlfriend is also human and make mistakes too. As you get to know each other better and become more comfortable in each other presence that situation is most likely to improve and you will start to feel better around her.