Why am I so nervous around my girlfriend?

Especially if its a new relationship, a couple may feel reserved/nervous around one another because they're simply not used to eachothers company. This is normal and usually over time they will get used to one another and a healthy relationship will be able to develop. If she makes you nervous even though you've been in a relationship with her for a long time, ask yourself, what exactly about her makes you feel nervous? What does she do or say that makes you feel this way? The answers you receive will surely give you more clarity on the matter.

that is a normal reaction. you want that she sees just the best of you, because you like her. so this makes you nervous. That is totally normal in the beginning.

You just need to relax and be yourself around her. You need to let yourself free from any barrier that's not letting you open up.

You might be scarred at being with her. You think about too many outcomes so you feel anxiety. Just take a deep breath and engage in a conversation! Communication normally is the way to push towards.

you may not want to mess things up and your scared that shell leave you your probably scared of being alone and you don't know what you would do without her and if you have already experienced heart ack you don't what to feel that again.

Maybe you aren't comfortable with her? It can take time to get comfortable with someone, even in a relationship. It is normal. Have you talked to her about it? Maybe she can help with it? You never know, maybe she is feeling the same way.

You're scared that you'll do something wrong that will push her away. You have feelings for her and you don't want to lose her.

You probably are feeling scared that you will do something that she will not like and you are feeling unsure. It's normal

You might be nervous around you're girlfriend because of something they did wrong in the past that you don't want to see it happen again and this is why you get nervous when they're around.

I think it's because you don't want to mess up your relationship. You know you've got something good when you're anxious about the outcome. It's precious that you are nervous, because it shows you really care that this relationship ends well.